TNCO ceilings

The Tar, Nicotine and Carbon monoxyde ceilings (more commonly defined as 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 [ISO methods 3308 (general conditions), 4387 (tar), 8454 (CO) and 10315 (nicotine).] . Because these refer to machine-generated yields rather than the average smoker's intake, these values have often been decried as misleading [WHO Scientific Advisory Committee on Tobacco Product Regulation. Recommendation on Health Claims Derived from ISO/FTC Method to Measure Cigarette Yield. 2002] .

A growing number of countries are nevertheless using such values as upper yield limitations for the cigarettes marketed under their jurisdiction.

Africa

Although many countries in the region do not impose formal ceilings, some still request that tar and nicotine yield values be indicated on the pack (India, Indonesia, Japan). In Brunei, Malaysia and Vietnam, on the other hand, measured values must only be reported to the government.

Eastern Europe and former CIS

The Palestinian Authority and Yemen do not require tar and nicotine values to be indicated on the packs' side.

Notes and References

ee also

* List of smoking bans