HVAC - EPA Certification Practice Exam 2025 - Free EPA Certification Practice Questions and Study Guide

The Montreal Protocol's primary aim is to regulate and phase out substances that deplete the ozone layer, which is critically important for protecting life on Earth from harmful ultraviolet (UV) radiation. This international treaty was established in 1987 and specifically targets chemicals, particularly chlorofluorocarbons (CFCs) and other ozone-depleting substances (ODS), to mitigate their impact on the ozone layer.

By addressing the issue of ozone depletion, the Montreal Protocol seeks to promote environmental sustainability and protect public health. The successful implementation of the protocol has led to significant reductions in the emissions of these harmful substances globally, contributing to the recovery of the ozone layer over time. This environmental action illustrates a concerted effort among countries to work together in limiting and eventually eliminating harmful practices that threaten the atmosphere.

The other options do not align with the primary intent of the Montreal Protocol. The protocol does not advocate for increased refrigerant production, promote fossil fuel use, or specifically focus on enhancing indoor air quality regulations, making the correct choice a reflection of its core mission.