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A minimum of two clearly marked exits shall be maintained from each floor during the abatement process. The second exit from a containment area may be covered with plastic upon approval of the Fire Department and the Department of Building and Safety. The covered exit shall be outlined with red duct-type tape, and a cutting device shall be kept immediately adjacent to the door in an obvious and readily accessible location. The cutting device shall also be surrounded by a square of red duct-type tape as described above.
In multi-story buildings where more than 25% of the floor area is undergoing abatement or under demolition in preparation for abatement, the following shall apply:
1. Asbestos abatement is permitted on a floor- by-floor basis, provided that no two consecutive floors are undergoing active abatement simultaneously. A maximum of every other floor, up to a total of three floors out of five, is permitted.
2. A minimum of five clean buffer floors must separate each group from the next five-floor group undergoing abatement.
3. Buffer floors must have all required fire and life safety equipment and fire protective coatings in place.
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