TNCO ceilings
Country Tar Nicotine CO As of
Albania 10 1 10 2007 05
Armenia 14 1.2 - 2005 12
Belarus 14 1.2 - -
Croatia 12 - - -
Georgia 10 1 - 2005 04
Kazakhstan 14 1.2 - 2003 07
Kyrgyzstan 14 1.2 -
Macedonia 10 1 10 2008 03
Moldova 15 1.2 - 2008 01
Montenegro 10 1 10 2004 02
Russia 10 1 10 2010 06
Serbia 14 1.4 14 2007 01
Turkmenistan 16 1.4 - -
Ukraine 15 1.3 - 1997 07
Uzbekistan 16 1.4 - -
Eastern Europe and former CIS
The Tar, Nicotine and Carbon monoxide ceilings (or TNCO ceilings) are the average upper limits on total aerosol residue, nicotine and carbon monoxide contents of a cigarette, as measured on a smoking machine and according to a given set of ISO standards. Because these refer to machine-generated yields rather than the average smoker's intake, these values have often been decried as misleading. A growing number of countries are nevertheless using such values as upper yield limitations for the cigarettes marketed under their jurisdiction.