• FILE - In this Wednesday, Nov. 9, 2016 file photo, a marijuana joint is rolled in San Francisco. Newly-approved laws in four states allowing the recreational use of marijuana are seen as unlikely to change rules regarding use of the drug in the workplace. (AP Photo/Marcio Jose Sanchez, File)

    FILE - In this Wednesday, Nov. 9, 2016 file photo, a marijuana joint is rolled in San Francisco. Newly-approved laws in four states allowing the recreational use of marijuana are seen as unlikely to change rules regarding use of the drug in the ... workplace. (AP Photo/Marcio Jose Sanchez, File) (The Associated Press)

  • FILE - In this Oct. 4, 2016 file photo, farmworkers inside a drying barn take down newly-harvested marijuana plants after a drying period, at Los Suenos Farms, America's largest legal open air marijuana farm, in Avondale, southern Colo. Newly-approved laws in four states allowing the recreational use of marijuana are seen as unlikely to change rules regarding use of the drug in the workplace. (AP Photo/Brennan Linsley, File)

    FILE - In this Oct. 4, 2016 file photo, farmworkers inside a drying barn take down newly-harvested marijuana plants after a drying period, at Los Suenos Farms, America's largest legal open air marijuana farm, in Avondale, southern Colo. Newly-... approved laws in four states allowing the recreational use of marijuana are seen as unlikely to change rules regarding use of the drug in the workplace. (AP Photo/Brennan Linsley, File) (The Associated Press)

A tip sheet for workers and workplaces where pot is legal

Markets Associated Press

Changing marijuana laws aren't necessarily making weed more welcome in the workplace.

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For now, many employers seem to be sticking with their drug testing and personal conduct policies, even in states where recreational marijuana use is now permitted. Others are keeping a close eye on the still evolving legal, regulatory and political environment.

Voters in California, Massachusetts, Maine and Nevada voted Nov. 8 to approve the use of recreational marijuana. Four other states already allow recreational pot and more than two dozen have medical marijuana programs.

All of the laws allow employers to continue testing workers for marijuana or keeping zero-tolerance policies in place.

Some advocates for reform of cannabis laws say employers should rethink zero tolerance policies and treat off-the-job use of marijuana as it would alcohol.