Brazil: Light-duty: Emissions

Overview

PROCONVE L6 standards, which are currently in effect and came into place in 2013, apply to all sales of new cars and light commercial vehicles. L6 does not include the diesel particulate filter-forcing limits on fine particle mass and particle number.

Standard type
Conventional pollutant emission limits

Current Standard
PROCONVE L6 (type approval)

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:

Summary of Brazil’s Light-Duty Emission Standards
Standard Euro Equivalent Implementation dates
PROCONVE L1 1988
PROCONVE L2 1992
PROCONVE L3 (Conama 8/93) Euro 0/2 1997
PROCONVE L4 (Conama 315/2002) Euro 3 2005 (40%)
2006 (70%)
2007 (100%)
PROCONVE L5 (Conama 315/2002) Euro 4 2009
PROCONVE L6 (Conama 415/2009) Euro 5* 2013 (Diesel)
2014 (Gasoline type approval)
2015 (All sales and registrations)
Note
* PROCONVE regulations tend to be more relaxed than the corresponding EU standards. For instance, the PROCONVE L6—while based on Euro 5—does not include the particulate filter-forcing PM mass or number emission standards.

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.

Emission Standards For Passenger Vehicles
(FTP-75; Durability: 80,000 km/5 years)
Tier Date Idle CO CO THC NMHC NOx HCO PM
% vol g/km
PROCONVE L4 1 January 20071,2 0.50 2.0 0.30 0.16 0.253/0.604 0.03 0.05
PROCONVE L5 1 January 2009 0.50 2.0 0.30 0.05 0.123/0.254 0.02 0.05
PROCONVE L6 1 January 20135 0.20 1.3 0.30 0.05 0.08 0.02 0.025
Notes:
Idle CO limits apply to Otto cycle engines only
THC limits apply to natural gas vehicles only
HCO limits apply to Otto cycle engines only; Natural gas vehicles exempted
PM limits apply to Diesel cycle engines only
(1) 1 January 2005: at least 40% of annual production (passenger vehicles + light commercial vehicles)
(2) 1 January 2006: at least 70% of annual production (passenger vehicles + light commercial vehicles)
(3) Otto cycle engines
(4) Diesel cycle engines
(5) For all diesel vehicles. Otto cycle 1 January 2014/1 January 2015 for new models/all registrations, respectively.
Emission Standards For Light Commercial Vehicles
(FTP-75; Durability: 80,000 km/5 years)
Category* Tier Date Idle CO CO THC NMHC NOx HCO PM
% vol g/km
≤1700 kg PROCONVE L4 1 January 20071,2 0.50 2.0 0.30 0.16 0.253/0.604 0.03 0.08
PROCONVE L5 1 January 2009 0.50 2.0 0.30 0.05 0.123/0.254 0.02 0.05
PROCONVE L6 1 January 20135 0.20 1.3 0.30 0.05 0.08 0.02 0.03
>1700 kg PROCONVE L4 1 January 20071,2 0.50 2.7 0.50 0.20 0.433/1.004 0.06 0.10
PROCONVE L5 1 January 2009 0.50 2.7 0.50 0.06 0.253/0.434 0.04 0.06
PROCONVE L6 1 January 20135 0.20 2.0 0.50 0.06 0.253/0.354 0.03 0.04
Notes:
Idle CO limits apply to Otto cycle engines only
THC limits apply to natural gas vehicles only
HCO limits apply to Otto cycle engines only; Natural gas vehicles exempted
PM limits apply to Diesel cycle engines only
* Light Commercial Diesel Vehicles >2000 kg max. total mass are allowed to be homologated as HD,
(1) 1 January 2005: at least 40% of annual production (passenger vehicles + light commercial vehicles)
(2) 1 January 2006: at least 70% of annual production (passenger vehicles + light commercial vehicles)
(3) Otto cycle engines
(4) Diesel cycle engines
(5) For all diesel vehicles. Otto cycle 1 January 2014/1 January 2015 for new models/all registrations, respectively.

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

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