All land divisions shall comply with the minimum standards and improvement requirements set forth in this title. The land divider shall demonstrate compliance with design standards during preliminary subdivision review and approval. All required improvements shall be installed after preliminary land division approval and prior to final land division approval. Every final plat shall consist of one or more pages, each eighteen (18) inches wide by twenty-four (24) inches, clearly and legibly drawn on polyester base (mylar) film with a minimum thickness of three (3) mil. All drawing and lettering on the final plat shall be in permanent black ink. The only acceptable alternative is photographically processed mylar film copies (“photographically processed” means fixed line silver based photopositive chemical process). The following processes are not acceptable: diazo (ammonia) process mylar, electrostatic mylar, wash off (wet erasable) mylar, sepia paper, pencil on mylar or tracing paper.

The perimeter of the plat shall be depicted with heavier lines than appear elsewhere on the plat. The scale shall be 200 feet to one inch or such other appropriate scale approved in writing by the Administrator. A marginal line shall be drawn completely around each sheet, leaving an entirely blank margin of at least one-half inch. All signatures shall be original signatures written in permanent black ink or an approved equivalent.