"Sec. 1. Any existing law to the contrary notwithstanding, salaries of the following positions in the Bureau of Public Highways are hereby fixed as follows:
"(a) Commissioner, Eighteen thousand pesos per annum由ange 67;
"(b) Chief Highway Engineer, Seventeen thousand one hundred pesos per annum由ange 65;
"(c) Highway Division Engineer, Chief of Specialized Divisions (Construction, Maintenance, Programming and Planning, Designing, Materials Testing and Physical Research, Foreign Loan, Development Projects and Equipment and Shop), the Administrative Engineer and Head Executive Assistant in the Central Office, Sixteen thousand two hundred pesos per annum由ange 64 and the Assistant Chiefs of the above specialized divisions in the Central Office and Field Engineering Division at Fourteen thousand four hundred pesos per annum由ange 61;
"(d) Chiefs of the Personnel and other Divisions in the Central Office, including Internal Audit Service and Administrative Officer V at Fourteen thousand four hundred pesos per annum由ange 58 and the Assistant Chief of the above other Divisions, and Internal Audit Service, at Ten thousand eight hundred pesos per annum由ange 55;
"(e) Chief of Section, except non-technical section, under the Specialized Technical Divisions in the Central Office and Field Division Offices, at Twelve thousand six hundred pesos per annum由ange 58 and Chief of Sections under the other Divisions, Internal Audit Service, and non-technical sections of specialized Technical Divisions at Nine thousand six hundred pesos per annum由ange 53;
"(f) Assistant Chiefs of Section under the specialized Technical Divisions in the Central Office and Field Division Offices, at Ten thousand eight hundred pesos per annum由ange 55;
"(g) Sub-Section Chief under the specialized Technical Divisions in the Central Office and Field Division Offices at Ten thousand two hundred pesos per annum由ange 54."