Section 4. Article 335 of Chapter III of Book VII on Transitory and Final Provisions of the same Code is hereby amended to read as follows:

"ART. 336. Bureau of Workmen's Compensation and Workmen's Compensation Commission. — The present Bureau of Workmen's Compensation, Workmen's Compensation Commission, and Workmen's Compensation Units in the Department of Labor shall continue to exist up to December 31, 1975. Thereafter, said Offices shall be considered abolished and all officials and personnel thereof shall be transferred to and mandatorily absorbed by the Department of Labor, subject to Presidential Decree No. 6, Letters of Instructions No. 14 and 14-A and the Civil Service law and rules.

"The salaries of the present officials and personnel of the Bureau of Workmen's Compensation, Workmen's Compensation Commission, and Workmen's Compensation Units in the regional offices of the Department of Labor shall be paid from the appropriations under Presidential Decree No. 503 for the fiscal year ending June 30, 1975. Beginning July 1, 1975, their salaries shall be paid from general appropriations."