The design and construction of reinforced, prestressed or precast concrete structural work shall be deemed to satisfy the requirements of these by-laws if the design and construction is in accordance with-

a) C.A.S. 164 The structural use of reinforced concrete in buildings; or

b) C.A.S. 165 The structural use of prestressed concrete in buildings; or

c) C.A.S. 166 The use of use of precast concrete; or

d) C.A.S. 170 The structural use of concrete