This Credit Interpretation Request asks two questions. First, is there a possible exception to the STC requirement for exterior window glazing based on environmental noise level ? Second, are skylights included in the STC requirements? If so, is there a possible exception to the STC requirement for exterior skylight glazing based on environmental noise level? The project is an addition and renovation of an existing gymnasium building on a school campus in a quiet suburban area of Baltimore City, Maryland. The specific location of this building on the cjacent classrooms per se. The intent of the Dining Hall is that it be used primarily for food service with occasional use for special events for the campus and community. These events are intermittent, generally evening occurrences. Decibel levels, environmental noise, for the site are below 60 dB DNL. Glazing specified meets high energy and thermal efficiency goals and admits significant daylight into the building. The glazing does, however, not meet the STC of 35 required by EQ PR 3. Calculated STC for the glazing is STC 32. The Dining Hall is naturally lit by 21 skylights specially designed to work in combination with sloped skylight monitors to spread light evenly through the dining hall. The specified skylights succeed in meeting energy, thermal, and lighting goals. They do not however come with any performance information and do not appear to meet the STC 35 requirement. Reverberation requirements are met throughout the project as it was judged that the spaces would be moderately noisy. The required STC separation has also been provided between the Dining Hall and all other interior spaces anticipating the infrequent occasions when the space is used for events. Exterior wall and roof assemblies are all in compliance with the STC requirements. All mechanical and other building system equipment has been evaluated and designed to meet acoustic requirements for EQ Credit 9: Enhanced Acoustical Performance. Based on the condition described, is there an exception/reduction to the STC requirements for exterior glazing in the Dining Hall? Second, are the skylights described considered in the STC requirements and if so then do they qualify for an exception/reduction of STC requirements? The project team feels that the spirit of \'EQ Prerequisite 3: Minimal Acoustical Performance\' has been met and is committed to providing school environments that are designed with the comfort and performance of the student in mind.