48 00 00 Electrical Power Generation 43 00 00 Process Gas and Liquid Handling Purification and Storage Eqpt. 41 00 00 Material Processing and Handling Equipment (Division) 35 00 00 Waterway and Marine Construction 34 00 00 Transportation 33 00 00 Utilities 31 70 00 Tunneling and Mining 26 30 00 Facility Electrical Power Generating and Storing Eqpt. 13 28 00 Athletic and Recreational Special Construction 01 00 00 General Requirements