SECTION 1. Section four of Republic Act Numbered Eighteen hundred thirty-one, otherwise known as the "Enlisted Men's Pay and Allowance Act of 1957," is amended to read as follows:
"SEC. 4. The monthly base pay of enlisted men of the Regular Force shall not be less than the following:
"(a) E-7
P175.00
"(b) E-6
165.00
" (c) E-5
.155.00
" (d) E-4
145.00
" (e) E-3
140.00
" (f) E-2
135.00
" (g ) E-1
130.00"