<P> In addition, Wales is due to introduce a smoking ban outside schools and hospitals from Summer 2019 . </P> <P> As United Nations buildings are not the subject of any national jurisdiction, the United Nations has its own smoking and non-smoking policies . Following the gradual introduction of partial smoking restrictions between 1985 and 2003, Secretary - General Kofi Annan introduced in 2003 a total prohibition upon smoking at United Nations Headquarters . Similar restrictions have not been introduced in field offices of the United Nations worldwide . Some specialised agencies of the United Nations, such as the United Nations Children's Fund and the World Health Organization have their own strict smoke - free regulations that apply to their offices worldwide, but the same is not necessarily true for entities of the Secretariat, such as the Department of Peacekeeping Operations and the Office for the Coordination of Humanitarian Affairs (OCHA). Only on 13 December 2007, OCHA introduced a smoke - free regulation applicable to all its field offices . </P> <P> In the United States, Congress has not attempted to enact any nationwide federal smoking ban . Therefore, smoking bans in the United States are entirely a product of state and local criminal and occupational safety and health laws . As a result, the existence and aggressiveness of smoking bans varies widely throughout the United States, ranging from total bans (even outdoors), to no regulation of smoking at all . Jurisdictions in the greater South tend to have the least restrictive smoking bans or no statewide bans at all . Of the 60 most populated cities in the United States, all but 17 ban smoking in all bars and restaurants . </P> <P> According to Americans for Nonsmokers' Rights, as of October 2012, 81.3% of the U.S. population is covered by bans on smoking in "workplaces, and / or restaurants, and / or bars, by either a state, commonwealth, or local law," although only 48.7% are covered by bans in all workplaces and restaurants and bars . </P>

When was smoking banned in hospitals in usa
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