Brazil: Light-duty: Emissions

Overview

 * Standard type: Conventional pollutant emission limits
 * Regulating body: Instituto Brasileiro do Meio Ambiente e dos Recursos Naturais Renovaveis (IBAMA), an agency within the Ministério do Meio Ambiente (Ministry of Environment)
 * Current standard: PROCONVE L6

History
The motor vehicle emission control program in Brazil is known as PROCONVE. While earlier light-duty vehicle emission standards ("L" standards) generally followed the European precedent, newer standards do not. Important regulatory steps are summarized in the following table:

Diesel engines have been used in Brazil in heavy-duty vehicles, such as trucks and buses, as well as in light-duty commercial vehicles, but are not allowed in passenger cars. For this reason, the first set of emission regulations did not include standards for diesel cars. Such standards have been included in newer legislation (PROCONVE L4/5), in part because Brazilian standards are used as a base by neighboring South American countries, where diesels are used in passenger cars.

OBD requirements for domestically produced and imported Otto cycle (gasoline) light commercial vehicles were adopted in 2004 (Conama 354/2004).

Technical Standards
Recent emissions standards for passenger cars and light commercial vehicles are summarized in the following tables. Light vehicles are tested over a chassis dynamometer cycle (test standard NBR6601), which is based on the FTP-75 test.

The regulations also set an evaporative emissions limit of 2 g/test for Otto cycle engines, except those fueled by natural gas.

Regulatory Documents

 * PROCONVE L3 standards: Conama 8/93
 * PROCONVE L4/L5 standards: Conama 315/2002
 * PROCONVE L6 standards: Conama 415/2009

Regulatory Agencies

Instituto Brasileiro do Meio Ambiente e dos Recursos Naturais Renovaveis (IBAMA), an agency within the Ministério do Meio Ambiente (Ministry of Environment).