National Association of Government Employees, Local R4-68 (the “union”) seeks review of an order of the Federal Labor Relations Authority (the “Authority”) which dismissed the union’s complaint, charging that the Department of the Interi- or, National Park Service, Colonial National Historical Park, Yorktown, Virginia (the “employer”) violated the Federal Service Labor-Management Relations Statute (the “Act”), 5 U.S.C. §§ 7101 et seq. The basis of the charge was that the employer failed to disapprove a local collective bargaining agreement within the time permitted by law, so that the agreement automatically became effective; however, the employer refused to implement the agreement.
The Authority ruled that the agreement had been disapproved within the requisite period and thus did not become effective, so that there was no transgression of the Act. Department of the Interior, National Park Service, Colonial National Historical Park, Yorktown, Virginia, Case No. 4-CA-30537, 20 F.L.R.A. No. 65 (October 28, 1985). We agree, and we affirm its decision and order.
I.
The operative facts may be stated succinctly. The union and the employer negotiated a collective bargaining agreement with respect to the nonsupervisory blue-collar seasonal and permanent employees of the Colonial National Historical Park, Yorktown, Virginia. The agreement was negotiated by the National Park Service and it was subject to approval or disapprov*1485al by the Department of the Interior in accordance with § 7114(c) of the Act.1
The agreement was executed on April 8, 1983, and it was submitted thereafter to the Department of the Interior for approval. On May 6, 1983, the appropriate representative of the Department of the Interior notified the Superintendent of the Colonial National Historical Park that the agreement was not approved, and on the same day the Superintendent gave telephone notice and had delivered written notice of disapproval to the union.
The notice to the Superintendent and his telephonic and written notice to the union were limited to the bare fact of disapproval. The reasons for disapproval were not then disclosed. However the reasons were contained in a memorandum which was received by the union on May 18,1983. That memorandum identified the provisions of the agreement that the Department thought were outside of the duty to bargain,2 and the reasons for that conclusion.
Both before and after receiving the copy of the memorandum, the union claimed that because it did not receive notice of the reasons for disapproval within the period of thirty days following execution of the agreement, the agreement became effective and the employer committed an unfair labor practice by refusing to observe the terms and provisions of the agreement. It filed its charge on July 20, 1983.
II.
This case turns on the question of whether the notice of disapproval was ineffective because it did not assign reasons therefor. The Authority ruled that the notice was effective. It cited its holding in American Federation of Government Employees, AFL-CIO, Local 2 and Department of the Army, U.S. Army Materiel Development and Readiness Command, Harry Diamond Laboratories, 11 FLRA 359 (1983) that a written notice of disapproval constituted an allegation of nonnegotiability so as to give rise to the right of Agency review of negotiability as provided in 5 C.F.R. §§ 2424.1 et seq. It also ruled that neither the statute nor the applicable regulations required any particular degree of specificity in a notice of disapproval, and only after an aggrieved party petitioned for review of a claim of nonnegotiability was the employer obliged to disclose the specifics of its claim. See 5 C.F.R. § 2424.6.
We agree. We also reject the union’s argument that it would be unable to employ the procedures provided by regulation for review of a claim of nonnegotiability unless it knew the specifics of the claim. The regulations do not require specificity in the petition for review. See 5 C.F.R. § 2424.4. It would suffice for the union to file the executed agreement and allege that it had been disapproved.3 The answer of the employer would put in issue precisely what is in dispute.
*1486III.
For the reasons assigned by the Authority and those expressed herein, the decision and order of the authority are
AFFIRMED.