Use this checklist for naturally ventilated spaces prior to construction to review plans for prerequisite compliance:

Are all floor areas within 25 feet of an operable window?
Do all floor areas within 25 feet of an operable window appear have 4 ft2 of opening per 100 ft2 of floor area?
Is fresh outdoor air mechanically supplied and exhausted for all regularly occupied spaces beyond 25 feet of an operable window?
Do any corridors or entryways fall outside of these naturally or mechanically ventilated areas? If so, develop the design further to supply sufficient ventilation.