Code of conduct or code of practice?

[Stefan Seidel]

Test No. incompl/advan-1 "Code of Practice", question 1

The company had its own code of ......... in these matters.

(a) behaviour
(b) practice
(c) dealing
(d) attitude

Test No. incompl/advan-1 "Code of Practice", answer 1

The company had its own code of practice in these matters.

Correct answer: (b) practice
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I only knew "code of conduct" as a business expression, would this be appropriate as well?

[Alan]

Code of practice is often used in a commercial/business sense to describe the correct procedures. Code of conduct has more the sense of moral correctness within society.
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