What is a not-to-exceed engineering fee?

A not-to-exceed fee is a contractual ceiling for identified engineering services, not an unlimited promise to complete every possible task. The agreement should define the included deliverables, billing basis, assumptions, notice of approaching the ceiling, and treatment of owner changes, concealed conditions, added agency requirements, and other authorized services. The ceiling does not reduce the engineer's duty to review the work or allow an unlicensed person to make professional decisions. The AHJ can still require additional documentation before deciding a submission.

The correct application of not-to-exceed engineering fees starts with the actual project, not a generic promise. Confirm the jurisdiction, adopted code, design scope, existing conditions, required deliverables, and professional responsibility before relying on a conclusion. A responsible engineer documents assumptions and identifies information that still needs verification.

Project type, occupancy, existing construction, site conditions, code edition, agency requirements, and changes made after the original design can change the work. A concise answer is useful for orientation, but the signed or sealed project record must reflect the current scope and the authority's process.

• Confirm the authority having jurisdiction and current checklist
• Use current drawings, calculations, field evidence, and equipment information
• Separate engineering decisions from owner, architect, contractor, utility, and agency decisions
• Record assumptions, limitations, and questions requiring direct AHJ confirmation