EPA’s Laboratory Enterprise (LE) is comprised of the Regional, Program, and Office of Research and Development (ORD) Laboratories. Each of EPA’s laboratories have the following distinct and complementary missions:

• Regional Laboratories: provide scientific data in support of decisions by the EPA Regional Office’s environmental programs, address the comprehensive needs of the Regions, and inform immediate and near-term decisions on environmental conditions, emergency response, compliance, and enforcement.
• Program Laboratories: implement legislative mandates to develop and provide specific programs that support decisions for regulations, compliance, and enforcement at a national level.
• Office of Research and Development Laboratories: develop knowledge, assessments, and scientific tools that underpin decisions about EPA’s protective standards, risk assessments, and risk management decisions.