United States Court of Appeals For the First Circuit

No. 22-1198

MAINE FOREST PRODUCTS COUNCIL, PEPIN LUMBER, INC., and STÉPHANE AUDET,

Plaintiffs, Appellees,

v.

PATTY CORMIER, in her official capacity as Director of the Maine Bureau of Forestry, and AARON FREY, in his official capacity as Attorney General for the State of Maine,

Defendants, Appellants.

APPEAL FROM THE UNITED STATES DISTRICT COURT FOR THE DISTRICT OF MAINE

[Hon. John A. Woodcock, Jr., U.S. District Judge]

Before

Barron, Chief Judge, Selya and Howard, Circuit Judges.

Jason D. Anton, Assistant Attorney General, with whom Aaron M. Frey, Attorney General, Thomas A. Knowlton, Deputy Attorney General, Chief, Litigation Division, and Sarah E. Coleman, Assistant Attorney General, were on brief, for appellants. Nolan L. Reichl, with whom Joshua D. Dunlap, Kellie MacDonald, and Pierce Atwood LLP, were on brief, for appellees.

October 12, 2022 SELYA, Circuit Judge. This appeal requires us to

consider whether federal law preempts a Maine law fashioned to

prevent Canadian truck drivers from hauling logs within the state

under the auspices of the federal H-2A visa program. Finding that

the plaintiffs were likely to succeed in their challenge and that

the equities counseled in their favor, the district court

preliminarily enjoined enforcement of the law before it took

effect. See Me. Forest Prods. Council v. Cormier,

(D. Me. Feb. 18, 2022). Concluding, as we do, that the challenged

law is likely preempted as an obstacle to the federal H-2A program,

we affirm the district court's issuance of a preliminary

injunction.

I

The logging industry is a fixture of northern Maine. In

June of 2021, the Maine legislature enacted Public Law 280, titled

"An Act Regarding the Transportation of Products in the Forest

Products Industry" (P.L. 280). The relevant portions of the law,

codified at

, prohibit motor carriers and

landowners owning at least 50,000 acres of Maine forest land from

hiring anyone who is not a "resident of the United States" to drive

a vehicle "transport[ing] forest products" from one place to

another within Maine.

The law imposes an escalating series

of fines for violations, reaching as high as $25,000 per violation

- 2 - for a landowner and $10,000 per violation for a motor carrier.

See

The sparse legislative history of P.L. 280 indicates

that the Maine legislature's primary concern was the federal

government's issuance of H-2A visas to Canadian truck drivers, who

would then secure employment moving Maine logs. Consistent with

this emphasis, P.L. 280 states that a "'[r]esident of the United

States' does not include a person eligible to be in the United

States under the United States H-2A visa program."

§ 8006(1)(E). Broadly speaking, the H-2A visa program (which we

shall discuss in more detail below) authorizes foreign

agricultural workers to perform seasonal work in this country when

qualified U.S. workers cannot be found to fill available jobs.1

See

(a)(15)(H)(ii)(a), 1188; Overdevest Nurseries,

L.P. v. Walsh,

(D.C. Cir. 2021).

The parties direct our attention to testimony presented

to the legislature's Joint Standing Committee on Taxation by one

of the law's principal sponsors, Senator Troy Jackson. Senator

Jackson asserted that "Maine loggers and truckers face an uphill

battle competing against their counterparts in Canada, who benefit

from a favorable exchange rate and government-sponsored health

insurance." This competition, he continued, is facilitated by the

1 For purposes relevant to H-2A visas, agricultural labor includes logging employment. See

(b).

- 3 - federal government's practice of issuing H-2A visas to Canadian

truck drivers who transport logs within Maine — a practice that

Senator Jackson claimed "has depressed wages for Maine people

working in the woods and handed large landowners extraordinary

power in the industry." According to Senator Jackson, granting H-

2A visas to Canadian truck drivers to transport Maine logs within

the state is a "misuse of the H-2A program" and causes "injustice

to Maine workers."2

On October 7, 2021 — just a few days before P.L. 280 was

to take effect — this action was brought. Maine Forest Products

Council (a logging industry trade association), Pepin Lumber, Inc.

(a Maine logging company), and Stéphane Audet (a Canadian truck

driver working for Pepin Lumber under an H-2A visa) jointly filed

suit in the United States District Court for the District of Maine

against the Director of the Maine Bureau of Forestry and the

2 Senator Jackson added that his prior experience in the logging industry led him to believe that federal law already prohibits Canadian truck drivers from transporting goods point- to-point within the United States, a practice known as "cabotage." See

(b)(4)(i)(E) (restricting point-to-point transportation of goods by aliens entering the country under B-1 business visas pursuant to the United States-Mexico-Canada Agreement); Robert v. Reno,

(6th Cir. 2002) (discussing cabotage rules); see also

(c). In light of the federal prohibition on cabotage for those possessing B-1 visas, Senator Jackson mused, "there is real confusion as to why the federal government would allow this practice under the H- 2A visa program." But even though the cabotage issue was apparently a significant part of Senator Jackson's motivation, it is of minimal relevance to this appeal. Consequently, we do not dwell on it.

- 4 - Attorney General of Maine (together, the State). Their complaint,

which sought injunctive and declaratory relief, alleged that P.L.

280 is preempted under the Supremacy Clause of the United States

Constitution and violates the Equal Protection Clauses of both the

United States and Maine Constitutions.

The same day, the plaintiffs (whom we shall sometimes

refer to collectively as "the Loggers") moved for a temporary

restraining order (TRO) and a preliminary injunction against the

enforcement of P.L. 280. During a conference with counsel that

day, the TRO motion was dismissed following the State's agreement

that it would not enforce P.L. 280 until further order of the

district court. See Me. Forest Prods. Council,

, at

*1. The parties — agreeing on the relevant facts — subsequently

briefed the preliminary injunction motion. See

at *1 n.1. On

February 18, 2022, the district court preliminarily enjoined the

enforcement of P.L. 280 in its entirety on two independent grounds:

preemption and equal protection. See id. at *31-32.

This timely appeal ensued. In it, the State challenges

only the substance of the preliminary injunction, not its breadth

or scope. We limit our review accordingly.

II

We begin with a cautionary note: "[a] preliminary

injunction is an extraordinary remedy never awarded as of right."

Winter v. Nat. Res. Def. Council, Inc.,

(2008). To

- 5 - obtain this remedy, the moving parties must show that the balance

of four factors tips in their favor: a "likelihood of success on

the merits; whether and to what extent the movant[s] will suffer

irreparable harm in the absence of preliminary injunctive relief;

the balance of relative hardships . . . ; and the effect, if any,

that either a preliminary injunction or the absence of one will

have on the public interest." Ryan v. U.S. Immigr. & Customs

Enf't,

, 18 (1st Cir. 2020).

We review a district court's grant of a preliminary

injunction for abuse of discretion. See We the People PAC v.

Bellows,

(1st Cir. 2022). Under this multifaceted

standard, "we review the district court's answers to legal

questions de novo, factual findings for clear error, and judgment

calls with some deference to the district court's exercise of its

discretion." Akebia Therapeutics, Inc. v. Azar,

(1st Cir. 2020).

On appeal, the State has challenged only the district

court's determination that the Loggers have shown a likelihood of

success on the merits. We have made it pellucid that this is the

factor that "weighs most heavily in the preliminary injunction

calculus." Ryan, 974 F.3d at 18. It is, moreover, the "sine qua

non" for preliminary injunctive relief. Id. (quoting New Comm

Wireless Servs., Inc. v. SprintCom, Inc.,

(1st Cir.

2002)).

- 6 - The district court found that the other three factors

were compatible with the issuance of a preliminary injunction.

See Me. Forest Prods. Council,

, at *29-31. On

appeal, the State has not advanced any arguments relevant to those

factors, and we deem any such argument waived. See United States

v. Zannino,

(1st Cir. 1990).

The upshot is that, for present purposes, the

preliminary injunction rises or falls on the plaintiffs'

likelihood of success on the merits of their claims. It is to

that singular issue that we now turn. And although the district

court found that the Loggers' challenge to P.L. 280 was doubly

likely to succeed — on the separate grounds of preemption and equal

protection — it is unnecessary for us to address both aspects of

the district court's decision.3 See Toll v. Moreno,

(1982) (affirming lower court's preemption holding and

declining to address alternative equal protection holding). We

conclude that P.L. 280 is likely preempted and — with that

conclusion as the linchpin — we hold that the plaintiffs have

We read the district court's opinion as concluding that a 3

preliminary injunction was warranted on the preemption theory alone. See Me. Forest Prods. Council,

, at *19 & n.23. The court also chose to address the equal protection theory, chiefly because the existence of irreparable harm is "clearer" on that ground and avoiding the equal protection analysis would "run[] the risk" that this court would be required to remand.

at *19 n.23.

- 7 - carried their burden of showing a likelihood of success on the

merits.

A

Our system of overlapping federal and state

sovereignties gives rise to "the possibility that laws can be in

conflict or at cross-purposes." Arizona v. United States,

(2012). The constitutional rule in such cases,

embodied in the Supremacy Clause, makes federal law "the supreme

Law of the Land," which overwhelms "any Thing in the Constitution

or Laws of any State to the Contrary." U.S. Const. art. VI, cl.

2. Congress thus "has the power to pre-empt state law." Arizona,

.

Preemption has three branches: "express," "field," and

"conflict." Id.; see Consumer Data Indus. Ass'n v. Frey,

(1st Cir. 2022). In this instance, the parties have focused

their arguments solely on conflict preemption — specifically, the

offshoot of conflict preemption called "obstacle preemption." We

follow their lead.

Obstacle preemption is implicated when "the challenged

state law 'stands as an obstacle to the accomplishment and

execution of the full purposes and objectives of Congress.'"

Arizona,

(quoting Hines v. Davidowitz,

(1941)). Cases of obstacle preemption (like all forms of

preemption) fit into the following mold: "Congress enacts a law

- 8 - that imposes restrictions or confers rights on private actors; a

state law confers rights or imposes restrictions that conflict

with the federal law; and therefore the federal law takes

precedence and the state law is preempted." Murphy v. Nat'l

Collegiate Athletic Ass'n,

(2018). "What is

a sufficient obstacle is a matter of judgment, to be informed by

examining the federal statute as a whole and identifying its

purpose and intended effects." Crosby v. Nat'l Foreign Trade

Council,

(2000).

"In all pre-emption cases, and particularly in those in

which Congress has 'legislated . . . in a field which the States

have traditionally occupied,' we 'start with the assumption that

the historic police powers of the States were not to be superseded

by the Federal Act unless that was the clear and manifest purpose

of Congress.'" Medtronic, Inc. v. Lohr,

(1996)

(alteration in original) (citation omitted) (quoting Rice v. Santa

Fe Elevator Corp.,

(1947)). The presumption

does not apply, though, "when the State regulates in an area where

there has been a history of significant federal presence." United

States v. Locke,

(2000); see Brown v. United

Airlines, Inc.,

(1st Cir. 2013). And whether or

not the presumption against preemption applies, the burden of

proving preemption lies with the parties asserting it (here, the

- 9 - plaintiffs). See Capron v. Off. Of Att'y Gen. of Mass.,

(1st Cir. 2019).

The Loggers argue that the presumption is inapplicable

here because P.L. 280 seeks to regulate immigration — an area

traditionally of federal concern. This argument is not without

some force, but — for ease in exposition — we assume (albeit

without deciding) that the presumption against preemption applies

in this case.

B

Having sketched the analytical framework governing the

Loggers' claim of obstacle preemption, we proceed to describe the

H-2A program with which P.L. 280 is alleged to conflict. Under

the Immigration and Nationality Act of 1952 (INA), as amended, an

"H-2A worker" is "an alien . . . having a residence in a foreign

country which he has no intention of abandoning who is coming

temporarily to the United States to perform agricultural labor or

services . . . of a temporary or seasonal nature."

(a)(15)(H)(ii)(a), 1188(i)(2). An H-2A petition must be

filed with federal immigration authorities by the worker's

prospective employer. See

§ 1184(c)(1);

(h)(5). Approval of an H-2A petition is contingent upon

the certification of the Secretary of Labor that:

(A) there are not sufficient workers who are able, willing, and qualified, and who will be available at the time and place needed, to

- 10 - perform the labor or services involved in the petition, and (B) the employment of the alien in such labor or services will not adversely affect the wages and working conditions of workers in the United States similarly employed.

(a)(1).

Congress has authorized the Secretary of Labor to

promulgate regulations implementing the H-2A program. See

; see also

(a)(15)(H)(ii). Pursuant to this

authority, the Secretary has issued comprehensive regulations

governing the H-2A certification process. As relevant here, the

key components of that process are as follows. The employer must

submit an "Application for Temporary Employment Certification" to

the Secretary of Labor.

. Between sixty and

seventy-five days before work is needed, the prospective employer

must also submit a "job order" meeting specified criteria to the

local State Workforce Agency (SWA), which will advertise compliant

job orders through the intrastate and interstate "clearance"

systems in an effort to find qualified U.S. workers.

§ 655.121(a)-(c). The employer must accept all referrals of

eligible U.S. workers by the SWA and independently recruit U.S.

workers for the job. See id. §§ 655.135, 655.153; see also

(b)(4). If the employer rejects qualified referrals

or other U.S. applicants without a legitimate reason, they will be

counted as "available" workers, and their presence may prevent the

- 11 - issuance of the necessary certification that "there are

insufficient U.S. workers to fill the employer's job opportunity."

(b).

The regulations also ensure that the open agricultural

jobs can be filled by qualified U.S. workers without depressing

their wages or working conditions. For example, "[e]mployers

seeking H-2A certification are required to pay the higher of the

Adverse Effect Wage Rate (AEWR), the prevailing wage, or the legal

minimum wage." Mendoza v. Perez,

(D.C. Cir.

2014) (citing

(a)). "The AEWR is a specially

calculated wage based on the Department of Agriculture's Farm Labor

Survey, which approximates what the prevailing wage would be if

not for the hiring of foreign workers."

(citing Temporary

Agricultural Employment of H-2A Aliens in the United States,

, 6891-93 (Feb. 12, 2010)). This rate, in effect,

"provides a wage floor that aims to prohibit employers from

underpaying foreign workers and thereby depressing wages for

similarly-employed American workers." Overdevest Nurseries,

. Moreover, the employer "must offer to U.S. workers

no less than the same benefits, wages, and working conditions that

the employer is offering, intends to offer, or will provide to H-

2A workers" — all of which must satisfy certain minimum standards

specified by regulation.

.

- 12 - If the Secretary of Labor provides the certification and

the petition is approved by the immigration authorities, the H-2A

worker "may be employed only by the [employer] through whom the

status was obtained." 8 C.F.R. § 274a.12(b)(9). An H-2A visa

will be revoked if the worker "is no longer employed by the

petitioner in the capacity specified in the petition." Id.

§ 214.2(h)(11)(iii)(A)(1).

C

This tees up the question of whether P.L. 280 is an

obstacle to the achievement of Congress's purposes in enacting the

H-2A worker visa program and, therefore, preempted.

1

As classically formulated, the doctrine of obstacle

preemption invites courts to assess a federal statute's "full

purposes and objectives" in deciding whether the state law "stands

as an obstacle" to their achievement. Hines,

. In

Arizona, for example, the Supreme Court held that a state law

making it a crime for an unauthorized alien to apply for or perform

work in the state was "an obstacle to the regulatory system

Congress chose."

. After examining "the text,

structure, and history" of the relevant statute, the Court

concluded that "Congress decided it would be inappropriate to

impose criminal penalties on aliens who seek or engage in

unauthorized employment."

The state law criminalizing that

- 13 - conduct was therefore preempted under the doctrine of obstacle

preemption. See

.

Recently, though, several Justices have questioned the

wisdom and legitimacy of grounding preemption upon judicial

"[e]fforts to ascribe unenacted purposes and objectives to a

federal statute." Va. Uranium, Inc. v. Warren,

(2019) (lead opinion of Gorsuch, J.). Such purposes are

difficult to discern, these Justices argue, and finding preemption

due to "hidden legislative wishes" risks "displacing the

legislative compromises actually reflected in the statutory text"

— thereby "displacing perfectly legitimate state laws on the

strength of 'purposes' that only we can see, that may seem

perfectly logical to us, but that lack the democratic provenance

the Constitution demands before a federal law may be declared

supreme."

.

Perhaps harboring concerns of this nature, the Court's

recent cases have subtly reframed the obstacle preemption analysis

as limited to cases in which "Congress enacts a law that imposes

restrictions or confers rights on private actors" and "a state law

confers rights or imposes restrictions that conflict with the

federal law." Murphy,

. In that vein, the Court

glossed Arizona's holding, reasoning that the federal statute at

issue there "implicitly conferred a right to be free of criminal

(as opposed to civil) penalties for working illegally, and thus a

- 14 - state law making it a crime to engage in that conduct conflicted

with this federal right." Kansas v. Garcia,

(2020).

Mindful of this subtle shift, we frame the question

before us as follows: have the Loggers shown that they are likely

to succeed in their claim that the federally enacted H-2A program

confers a right on private actors (either explicitly or implicitly)

that conflicts with P.L. 280's restrictions? As we shall explain

below, we think that such a conflict is unmistakable and that,

therefore, the Loggers have made the requisite showing.

2

The text and structure of the H-2A statutory provisions

reflect Congress's considered judgment that agricultural employers

who cannot find qualified U.S. workers should be able to hire

foreign laborers when specified criteria are satisfied. The system

is responsive to the employer's immediate labor needs. For

instance, the employer's application deadline cannot be "more than

45 days before the first date the employer requires the labor or

services of the H-2A worker," and the employer must be notified of

any deficiencies in the application and be given a chance to

resubmit.

(c). Tellingly, the statute directs the

Secretary of Labor to issue the requisite certification so long as

"the employer has complied with the criteria for certification"

(both statutory and regulatory), and to do so "not later than 30

- 15 - days before the date such labor or services are first required to

be performed."

§ 1188(c)(3)(A). Although Congress left the

ultimate decision about whether to grant a given petition in the

Attorney General's discretion, the Attorney General must first

consult with the Department of Labor and the Department of

Agriculture. See id. § 1184(c)(1).

To be sure, an employer seeking to hire an H-2A worker

must jump through hoops. This is because "Congress was concerned

about (1) the American workers who would otherwise perform the

labor that might be given to foreign workers, and (2) American

workers in similar employment whose wages and working conditions

could be adversely affected by the employment of foreign laborers."

Mendoza,

. Even so, Congress deliberately crafted

the H-2A program as a last resort for employers who have

demonstrated a specific, unfilled need for temporary agricultural

labor that U.S. workers will not do (and when U.S. workers will be

no worse off if foreign workers do it instead). Congress evidently

decided that when an employer has run this gauntlet and made the

required showing to federal authorities, the employer should have

access to foreign labor rather than see its business prospects

wither on the vine. We think it follows that Congress conferred

a right, at least implicitly, on agricultural employers to hire

temporary foreign workers when the H-2A criteria are satisfied.

- 16 - The history of the H-2A program confirms this

understanding. As originally enacted, the INA recognized a general

H-2 category of nonimmigrant aliens "coming temporarily to the

United States to perform other temporary services or labor, if

unemployed persons capable of performing such service or labor

cannot be found in this country." INA,

(a)(15)(H)(ii),

, 168. In this respect, the

statute did not differentiate agricultural workers from other

workers, and it contained no requirement for certification by the

Secretary of Labor.4

All of this changed with the enactment of the Immigration

Reform and Control Act of 1986 (IRCA),

Stat. 3359. "Congress enacted [the] IRCA as a comprehensive

framework for 'combating the employment of illegal aliens.'"

Arizona,

(quoting Hoffman Plastic Compounds, Inc.

v. NLRB,

(2002)). Amending the INA, section 301

of the IRCA established the H-2A agricultural worker program that

we already have described. See 100 Stat. at 3411-17. According

to the Senate Report, the purpose of the new H-2A category was "to

assist agricultural employers in adjusting to the reduced

availability of illegal foreign workers" in light of the IRCA's

4 As a corollary, it should be noted that federal law at the time did not generally forbid the employment of aliens unlawfully present in the country. See Sure-Tan, Inc. v. NLRB,

(1984).

- 17 - greater restrictions. S. Rep. No. 99-132, at 2 (1985); cf. Changes

to Requirements Affecting H-2A Nonimmigrants,

,

76891 (Dec. 18, 2008) (describing purpose of H-2A regulations "to

provide agricultural employers with an orderly and timely flow of

legal workers, thereby decreasing their reliance on unauthorized

workers, while protecting the rights of laborers"). The H-2A

program was thus conceived as a means of addressing the unmet

seasonal labor needs of agricultural employers by conferring a

right to hire foreign laborers under specified conditions.

Having given shape to this implicit federal right, the

conflict with P.L. 280 becomes starkly apparent. P.L. 280 is a

blunt intrusion on the implicit federal right. Not by accident,

it constitutes a direct and significant obstacle to achieving the

H-2A program's clear and manifest objectives. The state law

purports to forbid the employment of some of the very same laborers

whom federal law authorizes to work after an exacting showing of

need by their employers, in compliance with elaborate statutory

and regulatory criteria.

It is difficult to envision a more perfect collision of

purposes. P.L. 280 would nullify the implicit federal right of

the employer to hire foreign laborers on a temporary basis when —

through a process established by federal law — federal officials

have specifically determined that U.S. workers are unavailable for

the job and unaffected by the competition. The state law thus

- 18 - rudely "interfere[s] with the careful balance struck by Congress."

Arizona,

.

The State contends that federal law does not preempt

P.L. 280 because the H-2A program incorporates state employment

law such that the two work in concert. In support, the State cites

a regulatory provision requiring the SWA to ensure that each job

order in the clearance system includes an assurance by the employer

that "[t]he working conditions comply with applicable Federal and

State minimum wage, child labor, social security, health and

safety, farm labor contractor registration and other employment-

related laws."

(c)(3)(iii). P.L. 280's ban on

H-2A truckers, the State contends, is merely one iteration of the

"other employment-related laws" with which a job order must comply

to qualify for the H-2A program. Based on this interpretation of

the regulation, the State argues (in essence) that P.L. 280 is

itself part of the federal scheme and can therefore prevent the

issuance of H-2A visas for intrastate log-hauling jobs without

being preempted by federal law.

Yet, that interpretation is belied by the text of the

regulation, which — at the outset — specifies that it is the

"working conditions" of the job that must comply with relevant

law. The regulation, then, does not encompass every law about

employment (as the State would have us read it) but, rather,

encompasses a more circumscribed universe of "employment-related

- 19 - laws" that pertain to working conditions. That obvious conclusion

is bolstered by the ejusdem generis canon, which instructs that

where "a more general term follows more specific terms in a list,

the general term is usually understood to embrace any object

similar in nature to those objects enumerated by the preceding

specific words." Epic Sys. Corp. v. Lewis,

(2018) (internal quotation omitted). That is precisely the

situation here: the specific types of laws listed in

(c)(3)(iii) are laws relating to working conditions — and

P.L. 280 is not similar in nature to those laws. Thus, P.L. 280

is too much of an interloper to find a home within the generalized

regulatory phrase "other employment-related laws." To conclude

that the law fits into the list would take a leap of faith

equivalent to concluding that an elephant fits into an aviary.

What is more, we would not lightly adopt a reading of

this regulation that would require federal officials to deny H-2A

visas because of a state law specifically targeting the H-2A

program. Such a reading would be in tension with the structure

and purpose of the H-2A statutory provisions and would effectively

give states a veto power over the federal program. The structure

and purpose of the program argue persuasively against the existence

of such a veto power. See

(b)(2) (providing

employers with process to bypass SWA and petition Department of

Labor directly if SWA does not approve job order).

- 20 - The State's final refrain is that P.L. 280's "goal of

protecting Maine's domestic labor market" does not conflict with

federal law but, rather, is "complementary" to the H-2A program's

manifest concern with potential adverse effects on U.S. workers

due to imported foreign laborers. The State claims that "Maine's

Legislature enacted the law based on its determination that there

are sufficient local, domestic workers to fill these positions and

that employment by non-domestic workers has an adverse impact on

Maine wages and the Maine economy."5

This claim will not wash. Even a state law that

"attempts to achieve one of the same goals as federal law" may be

preempted when "it involves a conflict in the method" of execution.

Arizona,

; see Amalgamated Ass'n of St., Elec. Ry.

& Motor Coach Emps. of Am. v. Lockridge,

(1971)

("Conflict in technique can be fully as disruptive to the system

Congress erected as conflict in overt policy."). P.L. 280's

methods of protecting domestic workers are, in many important

respects, at odds with the federal program's methods.

The H-2A process determines the availability of U.S.

workers on a case-by-case basis and by floating a job order on the

5 The State also points to an out-of-circuit case as support for its position, LeClerc v. Webb,

(5th Cir. 2005). But that case is readily distinguishable, as its preemption analysis relies on the structure and purpose of a different visa scheme: the H-1B program.

- 21 - market; it addresses adverse impacts on U.S. workers by setting

minimum wage rates and working conditions; it lodges

decisionmaking authority with the Secretary of Labor and the

Attorney General; and it responds to employers' labor needs by

allowing the hiring of foreign workers as a last resort. P.L. 280

does none of these things, yet it attempts to override the specific

H-2A work authorizations provided by federal law. The Supremacy

Clause stands in its way.

III

We need go no further. Preliminary injunctions are

strong medicine and should be dispensed with care. Here, however,

the Loggers have carried their burden of showing (even assuming

arguendo the applicability of the presumption against preemption)

that the H-2A restriction imposed by P.L. 280 is likely preempted

by federal law. Given this showing and given the district court's

unchallenged determination that the other elements of the

preliminary injunction calculus are consistent with the granting

of relief, the district court's issuance of a preliminary

injunction must be

Affirmed.

- 22 -