Areas in a garage adjacent to classified locations in which flammable vapor release is unlikely (such as a storeroom) shall be unclassified where ____.

Areas in a garage adjacent to classified locations in which flammable vapor release is unlikely (such as a storeroom) shall be unclassified where ____.
A) designed with negative air flow
B) mechanically ventilated at a rate of four (or more) air changes per hour
C) designed with hermetical sealing around all doors
D) no electrical wiring passes within 10 feet of the pit area

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