Beginning in mid-November, most private U.S. employers will have to tack another poster on their employee bulletin boards: a notice spelling out workers’ union rights.

The requirement — part of a flurry of pro-union rulings by the National Labor Relations Board last week — applies to all employers under NLRB jurisdiction, which excludes agricultural, railroad and airline employers.

The new NLRB poster, similar to one which has been required for federal contractors since mid-2010, spells out workers’ rights to form or join labor unions, picket and strike, and bargain collectively without facing retaliation.

Read more of this story and find other Labor Day news in Monday's Arizona Daily Star and on StarNet.