Dive summary:

• A ruling from the National Labor Relations Board affects some, though not the majority, of contractors by not letting them stop collecting union dues through payroll deductions if a contract expires.
• The ruling involves what are called 9(a) labor agreements, though a different part of the law covers the agreements that many unionized contractors have, a type known as 8(f) or pre-hire agreements.
• The ruling up-ends a 1962 ruling in a case involving Bethlehem Steel and is a big enough change that the NLRB is applying it only to new cases, not existing ones.

From the article:

In the present case, WKYC-TV, Inc., the Board decided to re-examine the Bethlehem Steel rule and found “compelling statutory and policy reasons to abandon” that rule. ...