R26:51.

He will take a professional attitude in negotiations for his services and shall avoid all practices which have a tendency to affect adversely the amount, quality, or disinterested nature of professional services; such as charging inadequate fees for preliminary work or full services, competing for an engineering assignment on a price basis, spending large amounts of money in securing business or consenting to furnishing monetary guarantees of cost estimates.

[See Code 11(c). (Part 1) ]

Code is relevant when:

Engineer engages in negotiations for his services

Code is violated when:

Engineer does not take a professional attitude in the negotiations
OR
Engineer takes an approach that would have a tendency to reduce the amount and quality of his services
OR
Engineer charges inadequate fees for preliminary work or full services
OR
Engineer competes for work on a price basis
OR
Engineer spends large amounts of money to secure business
OR
Engineer consents to furnish monetary guarantees of cost estimates

Code is not violated when:

Engineer takes a professional attitude in the negotiations
AND
Engineer does not take an approach that would have a tendency to reduce the amount and quality of his services
AND
Engineer charges adequate fees for preliminary work or full services
AND
Engineer does not compete for work on a price basis
AND
Engineer does not spend large amounts of money to secure business
AND
Engineer does not consent to furnish monetary guarantees of cost estimates