13 00 00 Special Construction

13 20 00 Special Purpose Rooms

13 21 00 Controlled Environment Rooms 13 22 00 Office Shelters and Booths 13 23 00 Planetariums 13 24 00 Special Activity Rooms 13 26 00 Fabricated Rooms 13 27 00 Vaults 13 28 00 Athletic and Recreational Special Construction

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