C1AA - ARCHITECT AND ENGINEERING- CONSTRUCTION: OFFICE BUILDINGS
C1AZ - ARCHITECT AND ENGINEERING- CONSTRUCTION: OTHER ADMINISTRATIVE FACILITIES/SERVICE BUILDINGS
C1BE - ARCHITECT AND ENGINEERING- CONSTRUCTION: AIRPORT TERMINALS
C1CA - ARCHITECT AND ENGINEERING- CONSTRUCTION: SCHOOLS
C1DA - ARCHITECT AND ENGINEERING- CONSTRUCTION: HOSPITALS AND INFIRMARIES
C1DZ - ARCHITECT AND ENGINEERING- CONSTRUCTION: OTHER HOSPITAL BUILDINGS
C1FB - ARCHITECT AND ENGINEERING- CONSTRUCTION: RECREATIONAL BUILDINGS
C1JA - ARCHITECT AND ENGINEERING- CONSTRUCTION: MUSEUMS AND EXHIBITION BUILDINGS