P.U.D. Commissioners may approve deferred pay to the anniversary date of a contract (March 1, 1953) for electrical workers who were previously covered by the union contract, although the contract is not signed until six weeks after that date. P.U.D. may approve the deferred pay to the anniversary date of the agreement for office workers not previously covered by the union contract, if said workers were, in fact, the negotiating and contracting party, not bound under a previous separate contract. The existence of a strike in the present situation does not alter the conclusions above.