Chemical Management Section
Air Quality Training Center Bldg., DENR Compound
Visayas Ave., Diliman, Quezon City

TeleFax: (032) 928-8892

The Philippine Inventory of Chemicals and Chemical Substances (PICCS) is a list of all existing chemicals and chemical substances used, sold, distributed, imported, processed, manufactured, stored, exported, treated or transported in the Philippines. The chemicals and chemical substances in the inventory were nominated by the industries themselves. The first PICCS was published by DENR-EMB in 1995 and subsequently PICCS updates were published 2000, 2002, 2005 and 2008.

 PICCS contains the following information:

•  Chemical name and the Chemical Abstract Service number (CAS No.), a uniquely identifying number assigned to a particular chemical or chemical substance.

•  CAS Registry Index names that are assigned to chemicals in accordance with International Union of Pure and Applied Chemistry (IUPAC) nomenclature.

•  Common name of the chemical or chemical substance, only if different from CAS Registry Index name.


PICCS was developed to provide government, industry, and the public with a core inventory of all existing chemicals and chemical substances in the country. It serves as a guide for manufacturers and importers of chemicals. Manufacturers and importers need not notify and secure clearance from DENR-EMB before they manufacture or import chemicals included in PICCS; provided that these chemicals are not in PCL and not are subject to CCOs. Chemicals and chemical substances not included in PICCS cannot be manufactured or imported unless the proponent follows the PMPIN notification assessment process as discussed in the subsequent sections of this manual.

       *Fuel additives are required to be reviewed under Republic Act 8749, the Clean Air Act over if the Chemical ingredients are already in PICCS. 


Updating of the PICCS is done semi-annually and includes all new chemicals that have been issued a PMPIN Clearance Certificate.

All these new chemicals are submitted for verification of their CAS Registry Name and CAS Registry No. with the Chemical Abstract Service in the USA. Any correction is consulted with the notifier of the chemical.

Database version PICCS


Exemptions to PICCS and the PICCS Updating Rules:



·    Non-chemical substances

·    Naturally occurring substances

·    Mixtures

·    Radioactive substances, pesticides, drugs, foodstuffs, and consumer products that are regulated by other laws in the Philippines

·    By-products



·     Small-quantity chemicals manufactured or distributed (not imported) for market test and research and development in quantities less than 1,000 kg per year