RT Journal Article SR Electronic A1 Ĺ arkan, Branislav T1 JF Doprava a spoje YR 2011 VO 7 IS 1 SP 116 OP 124 UL https://tac.uniza.sk/artkey/das-201101-0016.php AB In the article there are analyzed data from the emission controls, which were made in the workplace of the Department of Road and Urban Transport from 2005 to 2009. We analyzed only gasoline engine vehicles and their production of CO and HC in emission controls based on the year of the vehicle production.