A certification signed by a registered professional engineer that all improvements have been built in accordance with the final plat (or noting modifications) shall be required before the subdivider’s obligations are fulfilled and the improvements guarantee is released. Any such noted modifications shall be approved by the Public Works Director, County Road Superintendent, or their designee prior to any release of funds or obligation. The subdivider may phase improvements and request a release from an appropriate portion of the obligations and improvements guarantee as such improvements are built, provided a certification is submitted for such improvements. The certification shall be in the following format:

"As Built" Engineer’s Certification

I, (Engineer’s Name), a Registered Professional Engineer in the State of Colorado, have reviewed the Final Plat of (Subdivision’s Name) and related relevant drainage plans, street plans and profiles, design and construction plans, and other improvement plans. I do hereby certify that I have made an inspection of those improvements described herein and find same to be built in accordance with the Final Plat except for the modifications specifically noted. I have attached hereto reasons for the modifications and relevant "as built" plans detailing the modifications. (List improvements certified, noting modifications.)