14(b).

When an Engineer uses designs supplied to him by a client the designs remain the property of the client and should not be duplicated by the Engineer for others without express permission.

[See Codes R10:21., III.10.b. ]

Code is relevant when:

Engineer has a client
AND
Engineer uses designs supplied by the client

Code is violated when:

Engineer does not recognize that the designs remain the property of the client
OR
Engineer duplicates the designs without permission

Code is not violated when

Engineer recognizes that the designs remain the property of the client
AND
Engineer duplicates the designs with permission