NEW YORK — Federal labor officials said Monday that they will decide quickly whether to support a request by Walmart Stores Inc. to stop a union-backed group from encouraging worker walkouts at hundreds of stores on Friday, the traditional start of the holiday shopping season.
The world’s largest retailer, based in Bentonville, Ark., filed an unfair labor practice charge with the National Labor Relations Board on Friday against the United Food and Commercial Workers International Union. It said that the demonstrations organized by union-backed OUR Walmart threaten to disrupt its business and intimidate customers and other associates.
OUR Walmart, formed in 2010 to press the company for better working conditions, is made up of current and former Walmart workers.
‘‘We are working as fast as we can.’’ said Nancy Cleeland, a spokeswoman at the NLRB, which is setting a goal of 72 hours since the filing to assess whether the complaint has merit. She noted that by statute the agency must make a charge of illegal picketing a priority before all other cases. She says the agency has to decide two main issues: whether workers are picketing and if so, whether the picketing was with the intent of unionizing workers. She said the agency had staff members at Walmart headquarters on Monday to take affidavits. It is also in touch with the union for its response.
‘‘This is a complicated case,’’ Cleeland said. She noted that if the labor board decides Walmart’s complaint has merit, the matter then goes to district court.
Walmart faced a worker walk-out in October ahead of its annual investor meeting that expanded to more than a dozen states and involved about 90 workers. Walmart workers again walked off their jobs last week in Dallas, Oakland, Calif., and Seattle.
On Monday some Walmart workers walked off their jobs as well, according to union officials. The number of workers involved could not be confirmed.
Union officials promise the demonstrations will culminate on Black Friday with demonstrations or walkouts at hundreds of stores across the country.
‘‘Walmart is doing everything in its power to attempt to silence our voice,’’ said Colby Harris, who works at a Walmart store in Lancaster, Texas. ‘‘But nothing — not even this baseless unfair labor practice charge —will stop us from speaking out.’’
Dan Fogleman, a Walmart spokesman, described the latest tactics from the group as ‘‘another exaggerated union campaign.’’
‘‘Many of these ongoing tactics by the UFCW are unlawful and we will protect our associates and customers,’’ he said.