Concerning the Xpo wharehouse location the unit has not been decertified by the nlrb . The company held an event ( cookout ) and had an employee pass around a letter to sign . Then when it was signed they presented to the employer . Keep in mind the employer can not leagally prompt employees do to do such a thing . Xpo has decided not to recognize the union due to the illegally obtained petition. That’s where it stands . The union has filed charges and there is no official decertification at this time and remains only a stalling tactic at this point by the company. The decertification is leagally obtained by a vote held by the Nlrb . The process is the same as as the process to form a union in a workplace.
The employees ( unprompted by employer) have to gain a percentage of employees to petition the Nlrb for a decertification vote. This has not happened.
From the Nlrb website:
Decertification election
Have a union, but don't want it anymore, or want a different one?
Under certain circumstances, you can vote out or "decertify" your union, or replace it with a different union. At least 30% of your coworkers must sign cards or a petition asking the NLRB to conduct an election. Unless a majority of the votes cast in the election are in favor of union representation, the union will be decertified. Such elections are barred, however, for one year following the union's certification by the NLRB. Plus, if your employer and union reach a collective-bargaining agreement, you cannot ask for a decertification election (or an election to bring in another union) during the first three years of that agreement, except during a 30-day "window period." That period begins 90 days and ends 60 days before the agreement expires (120 and 90 days if your employer is a healthcare institution). After a collective-bargaining agreement passes the three-year mark or expires, you may ask for an election to decertify your union or to vote in another union at any time.