Table 4

Clean indoor air restrictions in the states and District of Columbia for the last quarter of 1999 ^4-150

Sites with clean indoor air restrictions	No smoking allowed	Designated smoking areas with separate ventilation	Designated smoking areas required or allowed	No restrictions	Total number of states without effective smoking restrictions (including permitting smoking without separate ventilation)
State government work sites	12	2	29	8	37
Private work sites	0	1	20	30	50
Restaurants	2	1	28	20	48
Day care centres^4-151	–	–	7	22	29

↵4-150 Source: CDC STATE: tobacco map reports.90
↵4-151 The Centres for Disease Control and Prevention combined the categories of “no smoking allowed” and “designated smoking areas with separate ventilation”. The number of states in this combined category is 22.