MEMORANDUM *

Boualong Silkeutsabay, Khamlay Sil-keutsabay, Sinyo Silkeutsabay, and La Ly Yang (“the defendants”) appeal their convictions. Boualong Silkeutsabay, Sinyo Silkeutsabay, and' La Ly Yang pled guilty to conspiracy to manufacture 100 or more marijuana plants in violation of 21 U.S.C. §§ 841(a)(1), (b)(1)(B), 846. Khamlay Sil-keutsabay pled guilty to misprision of felony in violation of 18 U.S.C. § 4. The defendants argue that § 538 of the 2015 Consolidated and Further Continuing Appropriations Act, which prohibits the use of funds, in a manner that impedes a' state’s ability to implement its own medical marijuana laws, prohibited prosecution of their case. Pub. L. No. 113-235, § 538, 128 Stat. 2130, 2217 (2014). 1

We have jurisdiction under 28 U.S.C. § 1291, and we vacate the defendants’ sentences and judgments and remand for further proceedings.

1. We review de novo a district court’s decision to deny a motion to dismiss, including on the basis of its interpretation of a federal statute. United States v. Olander, 572 F.3d 764, 766 (9th Cir. 2009).

2. Under United States v. McIntosh, § 538 prohibits the federal government from prosecuting individuals who comply with state medical marijuana laws. 833 F.3d 1163, 1177 (9th Cir. 2016). 2 McIntosh held that individuals seeking to avoid prosecution under § 538 “are entitled to evi-dentiary hearings to determine whether their conduct was completely authorized by state law.” Id. at 1179.

3. Washington law provides that a designated provider can grow fifteen plants for a medical marijuana patient. Wash. Rev. Code § 69.51A.0210. State court of appeal decisions have interpreted these statutes to allow individuals to serve as designated providers for multiple patients at a time. State v. Markwart, 182 Wash.App. 335, 329 P.3d 108, 119 (2014); see also State v. Shupe, 172 Wash.App. 341, 289 P.3d 741, 748 (2012). Citing Markwart and Shwpe, the defendants contend that designated providers may legally grow fifteen plants for each qualified patient. The defendants argue that because they had 300 such qualified patients, they could grow up to 4,500 marijuana plants.

4. The district court found that the defendants did not comply with state medical marijuana laws because they pled guilty to possessing over 1,000 marijuana plants. The - district court did not hold an eviden-tiary hearing to make this determination and did not appear to consider Markwart *610 and Shupe, which indicate some ambiguity as to whether designated providers may grow larger quantities of marijuana when they serve multiple patients. 829 P.3d at 119; 289 P.3d at 748. Under McIntosh, the defendants are entitled to an evidentiary hearing in the district court on whether the amount of marijuana they were growing complied with Washington’s medical marijuana laws. 833 F.3d at 1179. Had the district court held an evidentiary hearing, it might have found that under a reasonable reading of Marhwart and Shupe, the defendants were not limited to fifteen marijuana plants.

5. Defendants entered conditional pleas of guilty that expressly reserved their rights to appeal the district court’s denial of the motion to dismiss the indictment. Because we vacate the order denying the motion to dismiss the indictment, we also conditionally vacate defendants’ convictions. The district court shall reinstate the convictions if, after conducting the eviden-tiary hearing, it determines defendants were not in compliance with Washington’s medical marijuana laws. See United States v. Cordoba, 104 F.3d 225, 229 (9th Cir. 1997).

6. In light of this disposition, upon remand the defendants shall be released from prison, subject to reasonable terms and conditions as determined by the district court.

7. The mandate shall issue forthwith. 3

VACATED AND REMANDED.