delivered the opinion of the Court.

This is a suit brought under the Tennessee Declaratory Judgment Law. Code, section 8835 et seq. The chancellor sustained defendant’s demurrer to the bill and dismissed the same. Complainant has appealed to this court and assigned errors.

The substance of the bill is that complainant, a New Jersey corporation, domesticated in Tennessee, is engaged in writing various forms of casualty insurance in Tennessee, Arkansas and elsewhere; that it issued to defendant an automobile liability policy and on August 1, 1938, while this policy was in force and effect, a bus owned and operated by defendant, and covered by the policy, became involved in an accident in the State of Arkansas, resulting in personal injuries to one W. Guy 0’’Neal and damage to his automobile, and also in personal injuries to one McNabb who was riding with O ’Neal as a passenger. That thereafter a suit was filed in the *53 circuit court of Scott County, Arkansas, by W. Gruy O’Neal and McNabb against tbe Tri-State Transit Company of Louisiana, Inc., defendant bere, and at tbe November term, 1939, a judgment was rendered in favor of these plaintiffs against defendant in tbe amount of $1,750.

It is recited in tbe bill that tbe automobile policy issued to tbe defendant contained a condition that in tbe event of an accident written notice should be given tbe insurance company as soon as practicable; that such notice shall contain reasonably obtainable information respecting tbe time, place and circumstances of tbe accident, tbe names and addresses of tbe injured and all available witnesses. That tbe policy also contained the provision that no liability of tbe insurer on account of tbe accident under tbe policy could attach unless tbe insured complied with tbe above-mentioned provision.

Tbe bill proceeded to aver that complainant received no notice of any kind from defendant about tbe accident in question from tbe date of its occurrence on August 1, 1938, until three months thereafter when it was apprized of tbe accident by tbe attorney for one of tbe persons injured in tbe accident; that being thus advised, complainant communicated with defendant and was advised by tbe defendant that it bad no knowledge of tbe accident or of tbe contentions made by either of the parties alleged to have been injured and, therefore, could not report it; that being thus advised, tbe complainant proceeded “to handle tbe matter,” after giving written notice of its position to tbe defendant and of tbe fact that if it was later proven that defendant, its agents or employees, did have knowledge of tbe accident and were in a position to report it that such omission constituted a breach of tbe policy contract.

It is further alleged in tbe bill that it developed in tbe *54 course of the trial of the suit in Scott County, Arkansas, that the defendant did know of the accident at the time of its occurrence and deliberately and carelessly failed to report the same to complainant in accordance with the condition of the policy. That as soon as complainant ascertained that defendant did have knowledge of this accident and failed to report the same, it immediately tendered further defense of the suit to defendant, which defendant refused, and after putting- the defendant on notice that it was proceeding with the defense of the case under protest and with full reservation of rights, complainant proceeded to defend the suit at its own expense. That after the rendition of the judgment in the circuit court of Scott County, Arkansas, complainant advised defendant that its policy had been breached and that the judgment would not he paid by the complainant unless and until by decree of a court of competent jurisdiction it was found that the complainant was liable for the payment of the judgment. That defendant has advised complainant that it proposes to, itself, pay the judgment and institute suit against complainant under the indemnity agreement of the policy contract.

The prayer of the bill, in part, is that complainant be awarded a decree for the amount of expenses it has incurred in the defense of the aforesaid lawsuit, and further be awarded a decree discharging and exonerating it from any and all further liability of any kind or character to the defendant, and on account of any sum which defendant may be required to pay in satisfaction of the judgment.

A copy of the policy in question was not exhibited with the bill.

Defendant demurred to the bill upon a number of grounds, the third ground being as follows: “The Bill *55 shows upon its face that W. Guy O’Neal and McNabb, both residents of Arkansas, have procured judgments against defendant, and are interested parties in the liability of complainant; but are not made parties to the bill. For that reason, no complete decree can be made in this cause. ’ ’

The chancellor sustained the demurrer as a whole, which action the complainant assigns as error.

Declaratory judgment may be refused where, if rendered, it would not terminate the uncertainty or controversy giving rise to the proceeding. Code, section 8840; Miller v. Miller, 149 Tenn., 463, 261 S. W., 965. It may be inferred from the bill that defendant is an interstate motor carrier. If such is the case, then under the Federal Motor Carrier Act (Title 49, ‘ ‘ Transportation, ’ ’ sec. 315', U. S. C. A.) defendant, under its certificate or permit, was obligated to comply with such reasonable rules and regulations as the Interstate Commerce Commission shall prescribe governing the filing and approval of surety bonds, policies of insurance, or other securities or agreements, in such reasonable amounts as the Commission may require, “conditioned to pay, within the amount of such surety bonds, policies of insurance . . . any final judgment recovered against such motor carrier for bodily injuries to or the death of any person resulting from the negligent operation, maintenance, or use of motor vehicles under such certificate or permit, or for loss or damage to property of others.” The policy of insurance here in question, or a copy thereof, is not exhibited with the bill; so, we have no way of ascertaining whether or not the policy is conditioned as required by the Federal Motor Carrier Act. Furthermore, the bill leaves it a matter of uncertainty and doubt that defendant is an interstate motor carrier, though, as before *56 stated, it may be inferred from the bill that defendant is such a carrier. If this be true, and if the policy of insurance be conditioned as required by the Federal Motor Carrier Act, then it follows that Guy O ’Neal and McNabb were necessary parties to this bill, their interests being directly involved. Not having’ been made parties defendant, any declaratory judgment entered herein would not be binding* upon them, Code, section 8845-, and would not terminate the controversy or remove the uncertainty giving rise to the proceedings. Annotation, 87 A. L. R., 1244.

The chancellor properly sustained the third ground of demurrer. Having reached this conclusion, it is unnecessary to notice the other grounds of demurrer. The result is that the decree of the chancellor dismissing the bill is affirmed. Complainant will pay the costs of the appeal.