Philippine Educational Laws
Section 21. Deductions Prohibited. - No person shall make any deduction whatsoever from the salaries of teachers except under specific authority of law authorizing such deductions: Provided, however, That upon written authority executed by the teacher concerned, (1) lawful dues and fees owing to the Philippine Public School Teachers Association, and (2) premiums properly due on insurance policies, shall be considered deductible.
IV. HEALTH MEASURES AND INJURY BENEFITS