Workplace smoking laws apply to enclosed places of employment with five or more employees. Exceptions include common work areas if a majority of the workers who work in that area agree that a smoking area will be designated.
An employer may prohibit smoking in all or part of workplace. An individual employee may designate his or her own work area as a nonsmoking area. Smoking in common work areas is prohibited unless a majority of workers in that area agree to designate it as a smoking area. Smoking is permitted when a majority of workers in an area decide to designate a common work area as a smoking area, unless the employer prohibits it.
In Alabama, smoking areas must be ventilated or separated to minimize the toxic effects of smoke.
Alabama employers must provide signs to post if an employee designates his or her own work area as nonsmoking.
Alabama employers must have a written smoking policy that meets minimum requirements and is communicated to all employees.
Alabama does not have a law protecting smokers from discrimination nor does it have a law protecting employees from discipline or discharge based on their off-duty conduct generally.
If you want to go right to the source and look up Alabama law on workplace smoking laws -- or if you're writing a letter to your employer or employee and want to cite the applicable law -- the relevant statute(s) can be found at Ala. Code Sections 22-15A-3 and 22-15A-5. Workplace smoking information is also available in Nolo's books Your Rights in the Workplace, by Barbara Repa (Nolo) and The Employer's Legal Handbook, by Fred Steingold (Nolo).