OMLI is proud to announce that it is accredited for PNS ISO/IEC 17025:2017 since 1997.

Accredited Testing Laboratory in the field of chemical and biological testing by PAB-DTI in compliance with PNS ISO IEC 17025:2017 requirements with approved parameters for the analysis of potable, drinking, saline water, sewage, industrial wastewater, ores and minerals, soils, sediments, sludge, ambient, stack, workplace environments.

OMLI is recognized by the Department of Environment and Natural Resources (DENR) as a DENR Recognized Environmental Laboratory afer undergoing laboratory inspection and assessment, proficiency testing, review and evaluation of test results and information processing.

DENR in compliance with DAO 98-63 guideline. OMLI-Laguna has approved parameters for the analysis of water and wastewater including microbiological, sediments, ambient air and stationary source emission.

Accredited Source Emission Testing Firm by DENR in compliance with DENR AO 1998-63  Guideline. Authorized to conduct stack testing limited to the following methods and parameters: USEPA Method 1 to 5 for Particulate Matter, USEPA Method 6/8 for Sulfur Dioxide, USEPA Method 7 for Oxides of Nitrogen and USEPA Method 10 for Carbon Monoxide, USEPA Method 11 for Hydrogen Sulfide  and USEPA Method 29 for Metals.

OMLI is equipped with state-of-the-art ambient air monitoring equipment which satisfies DENR DAO 2000-81 and USEPA Methods. OMLI provides technical expertise and assistance to its customers from assessment, sampling to data analysis and interpretation.

OMLI is an Accredited Drinking Water Testing Laboratory by the Department of Health (DOH), in compliance with the Rules and Regulations for Quality Water Analysis, including the Philippine National Standards for Drinking Water.

Accredited Laboratory for Drinking Water Analysis by DOH-HFSRB in compliance with AO 2017-0010 rules and regulations.

OMLI is accredited by the Food and Drug Administration (FDA) in Food Testing for a wide variety of test parameters for bottled water and food.

Accredited Work Environment Measurement (WEM) Provider as mandated by Department of Labor and Employment (DOLE) Department order No. 160 series of 2016. Sampling and Testing procedures are in compliance with Rule 1077 of the Occupational Safety and Health Standards (OSHS).