C28.

He will not become associated in responsibility for work with engineers who do not conform to ethical practices.

[See Codes 13. (Part 3), II.1.d. (Part 3) ]

Code is relevant when:

Engineer is responsible for engineering work
AND
Engineer associates with other engineers who will also be responsible for the engineering work

Code is violated when:

The other engineers do not conform with ethical practices

Code is not violated when:

The other engineers conform to ethical practices