213. (1) In this Chapter—

“code of practice” means a code of practice published under section 214(1), and includes part of such code;

“external code” means a code of practice which is not a code of practice published under section 214(1).

(2) (a) Nothing in this Chapter or in a code of practice published under section 214(1) shall be construed to prejudice the operation of an external code.

(b) Nothing in an external code of practice shall be construed to prejudice the operation of this Chapter or a code of practice published under section 214(1).