C26.

He will not compete with another engineer on the basis of charges for work by underbidding, through reducing his normal fee after having been informed of the charges named by the other.

[See Code III.7. (Part 1) ]

Code is relevant when:

Engineer competes with another engineer for a project or engineering work
AND
Engineer is informed of the fees proposed by the other engineer

Code is violated when:

Engineer underbids (i.e., he reduces his normal fee) for the project or engineering work

Code is not violated when:

Engineer does not underbid for the project or engineering work