The National Labor Relations Board released its most important ruling in many decades. In a party-line decision in Cemex Construction Materials Pacific, LLC, the Board ruled that when a majority of a company’s employees file union affiliation cards, the employer can either voluntarily recognize their union or, if not, ask the Board to run a union recognition election. If, in the run-up to or during that election, the employer commits an unfair labor practice, such as illegally firing pro-union workers (which has become routine in nearly every such election over the past 40 years, as the penalties have been negligible), the Board will order the employer to recognize the union and enter forthwith into bargaining.

The Cemex decision was preceded by another, one day earlier, in which the Board, also along party lines, set out rules for representation elections which required them to be held promptly after the Board had been asked to conduct them, curtailing employers’ ability to delay them, often indefinitely.

Taken together, this one-two punch effectively makes union organizing possible again, after decades in which unpunished employer illegality was the most decisive factor in reducing the nation’s rate of private-sector unionization from roughly 35 percent to the bare 6 percent at which it stands today.