Written Authorization Before Changed Work

You signed a contract to wire a customer's new garage, but the customer now wants additional outlets and a 240-volt circuit for a welder that were not in the original agreement. Which of the following best describes what has occurred?

Match each scenario encountered on a job site with the type of change order trigger it represents.

You have a signed contract to install white switches and receptacles throughout a new residential build. Before you order the materials, the homeowner decides they want black switches and receptacles instead. Because the black devices cost the same and take the exact same amount of time to install, this change in preference does not act as a change order trigger.

Analyze the structural development of a contract deviation. Arrange the following events in the logical sequence that illustrates how a change order trigger occurs during an electrical project.

As an electrical contractor, you must constantly evaluate job site realities against your signed agreements. When you discover unexpected solid rock while trenching for an underground service, you must judge the original contract as obsolete because this unforeseen condition acts as a change order ____ that significantly impacts your required time and cost.

You are designing a daily field diagnostic checklist for your lead electricians. The goal is to proactively identify any event that makes the signed agreement no longer match the project's reality before unauthorized work occurs. Which set of checklist questions constructs the most comprehensive tool for capturing change order triggers?