RA 3456
May 17, 1962

“An Act Providing for the Creation, Organization and Operation of Internal Audit Services in All Departments, Bureaus and Offices of the National Government”

(The Internal Auditing Act of 1962)

RA 4177
March 26, 1965

An Act to Amend Sections two, three and four of Republic Act Numbered Three Thousand Four Hundred Fifty-Six, known as “Internal Auditing Act of 1962”