4.

The Engineer will endeavor to extend public knowledge and appreciation of engineering and its achievements and to protect the engineering profession from misrepresentation and misunderstanding.

[See Codes C3. (Part 1), III.2.c. ]

Code is relevant when:

Engineer performs action related to the public's knowledge and appreciation of engineering

Code is violated when:

Engineer's action does not extend public knowledge and appreciation of engineering and its achievements
OR
Engineer's action does not protect the engineering profession from misrepresentation and misunderstanding

Code is not violated when

Engineer's action extends public knowledge and appreciation of engineering and its achievements
AND
Engineer's action protects the engineering profession from misrepresentation and misunderstanding