On the effective date of this act, officers and employees who, immediately prior to such date, were engaged in the performance of powers, duties or functions of the petroleum products inspection law pertaining to the actual inspection of the products specified in K.S.A. 55-423, and amendments thereto, and who, in the opinion of the secretary of agriculture, are necessary to perform the powers, duties and functions of the petroleum products inspection law pertaining to the actual inspection of the products specified in K.S.A. 55-423, and amendments thereto, shall be transferred to, and shall become officers and employees of the state department of agriculture. Any such officer or employee shall retain all retirement benefits and all rights of civil service which had accrued to or vested in such officer or employee prior to the effective date of this act. The service of each such officer and employee so transferred shall be deemed to have been continuous.
K.S.A. 55-438