Answer:
False.
Step-by-step explanation:
The National Labor Relations Board is an independent agency of the federal government of the United States. Its responsibilities are enforcing U.S. labor laws concerning collective bargain and unfair labor practices.
It has the authority to investigate and remedy unfair labor practices described in Section 8 of the Act. It bars union from striking with no required notice, but not indefinitely as the statement above said.
I hope this answer helps you.