When a customer requests a change in project scope after you have submitted your electrical proposal, it is acceptable to agree to the change verbally without updating the written proposal.

After you submit a proposal for rewiring a small office, the client calls to ask if you can also install four additional exterior security lights. Based on proper proposal revision control practices, how should you handle this request?

After submitting a proposal for a commercial lighting upgrade, the client calls to ask if you can also upgrade the breakroom outlets. Arrange the steps you should take to properly apply proposal revision control.

Analyze the following scenarios involving post-proposal customer requests. Match each contractor's action to the underlying principle of proposal revision control that it violates or upholds.

You are assessing the risk management practices of an electrical contracting firm. The sales team argues that revising proposals for minor customer requests is inefficient and prefers verbal agreements to keep projects moving. You evaluate this approach as critically flawed and mandate strict proposal revision control, justifying your decision by emphasizing that the originally accepted written proposal always becomes the definitive working ____ for the job, making unwritten changes unenforceable.