True or False: Halons were completely phased out by the year 1994.

Halons were indeed phased out in the United States by 1994 as part of the international effort to protect the ozone layer under the Montreal Protocol. Halons are chemicals that were once commonly used as fire extinguishing agents. Their phase-out was necessary because they contribute significantly to ozone depletion when released into the atmosphere. Although some limited uses may persist under specific regulations, the broad commercial use of halons has been prohibited since 1994. Therefore, the statement that halons were completely phased out by that year is accurate in the context of their general usage and the regulatory framework established to protect the environment.