Republic Act No. 8551, also known as the "Philippine National Police Reform and Reorganization Act of 1998," is a law passed by the Congress of the Philippines on February 25, 1998. The law amended Republic Act No. 6975 and expanded the authority of the National Police Commission (NAPOLCOM) over the Philippine National Police (PNP) . Some of the key provisions of RA 8551 include:

• The establishment of the Internal Affairs Service (IAS) to investigate police anomalies and irregularities and to conduct pre-charge investigations against erring police members.
• The creation of the PNP Retirement and Benefits System (PRBS) to administer the retirement and other benefits of PNP personnel.
• The provision of incentives and benefits for PNP personnel who exhibit acts of conspicuous courage and gallantry at the risk of their lives above and beyond the call of duty.

In summary, RA 8551 is a law that reformed and reorganized the Philippine National Police, expanded the authority of the National Police Commission, and established new systems and benefits for PNP personnel.