impasse in negotiations had been rached as of April 29, 1976.  I further find that the changes in job classifications made by the City on April 5, 1976, were made while the parties were engaged in negoti- ations and had not yet reached bona fide impasse, were made without providing the Union with notice and opportunity to bargain, and therefore were unilateral changes, in violation of Sections 10.1, 10.2(e) and 10.2(f) of the Act. On the basis of the foregoing, I hereby issue the  following recommended: ORDER IT IS HEREBY ORDERED that the parties or their representatives meet with the undersigned within 14 days of the date below for the purpose of constructing  an appropriate remedy for the prohibited practice pursuant to Section 11 of the Act. DATED at Des Moines, Iowa, this 18th day of February, 1977. RONALD HOH/HEARING OFFICER

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