when did smoking indoors become illegal

Smoking indoors did not become illegal all at once; it was phased in over several decades, at different times in different places, mainly from the 1970s through the 2000s.

Quick Scoop: Key Dates

• 1960s–1970s: Health warnings about smoking and secondhand smoke start shaping policy, especially after the 1964 Surgeon General’s report in the U.S.

• 1975: Minnesota passes the Minnesota Clean Indoor Air Act, the first U.S. state law restricting smoking in most indoor public spaces (with restaurant non‑smoking sections and bar exemptions).

• 1990: San Luis Obispo, California, becomes one of the first cities in the world to ban smoking in bars as well as restaurants.

• 1990s: More U.S. states pass “clean indoor air” acts; Utah and California introduce broad bans in public places, with California’s restaurant ban taking effect in 1995.

• 1997: President Bill Clinton signs an executive order banning smoking in most U.S. federal government buildings.

• Early–mid 2000s: Indoor smoking bans expand rapidly across U.S. states and many countries; by the end of the 2000s, roughly half of U.S. states have comprehensive indoor bans for workplaces, restaurants, and bars.

• By 2010s: Many Western countries have nationwide smoke‑free laws for indoor public places and workplaces; some cities and regions go further, restricting smoking in multi‑unit housing and certain outdoor areas.

In other words, there isn’t a single year when “smoking indoors became illegal” everywhere—it shifted from normal to rare over about 30–40 years, and it still depends on your country, state, or city.

How the Change Happened

Lawmakers usually moved in steps rather than a sudden total ban:

1. Require non‑smoking sections in restaurants and public buildings.
2. Restrict smoking in obvious shared spaces (elevators, buses, hospitals, schools, government offices).
3. Extend bans to most workplaces.
4. Finally include bars, clubs, and casinos, which were often the last holdouts.

An everyday example: someone who grew up in the 1970s U.S. might remember people smoking on planes, in offices, and in restaurants; by the late 2000s, they’d find that almost all of those spaces had become smoke‑free by law.

Why It Took So Long

Several forces shaped the timeline:

• Growing evidence about secondhand smoke’s health risks (heart disease, lung cancer, respiratory illness) pushed governments to act.
• The hospitality and tobacco industries lobbied hard against early bans, arguing about economic impact and “smokers’ rights.”
• Public opinion slowly shifted as non‑smokers demanded cleaner air and as smoke‑free spaces became the new normal.

Research later showed that smoke‑free laws were linked with measurable drops in heart‑attack admissions and other health improvements, which strengthened political support for keeping and extending the bans.

Today’s Situation

• Many countries now ban smoking in indoor public places and workplaces nationwide, but the exact rules (bars, casinos, private clubs, apartments) differ by jurisdiction.

• In the U.S., some states and cities have very strong smoke‑free laws, while others still allow smoking in certain indoor venues.

If you tell me your country or state, I can narrow down roughly when indoor smoking became illegal where you live.

Information gathered from public forums or data available on the internet and portrayed here.