All handling and storage of gasoline, fuel oil and other flammable liquids or gases shall be consistent with nationally recognized standard good practice for the safeguarding of life and property. Compliance with the standards of the National Board of Fire Underwriters or other nationally recognized safety standards shall be deemed to be prima facie evidence of compliance with this requirement. The applicable standards of the National Board of Fire Underwriters are set forth in Pamphlets Nos. 30 and 58, respectively, titled "Standards of the National Board of Fire Underwriters for the Storage and Handling of Flammable Liquids" and "Standards of the National Board of Fire Underwriters for the Storage and Handling of Liquefied Petroleum Gases."
A. 
Container filling. Liquefied petroleum gas containers shall be filled at a properly equipped container filling plant located in accordance with § 360-44B or from a tank truck subject to the restrictions set forth in § 360-44C, provided that in either case the operations are in compliance with the applicable requirements of the standards prescribed in Pamphlet No. 58 for the storage and handling of liquefied petroleum gases. During these operations no vapor or liquid shall be vented to the atmosphere and container filling in either instance shall be performed only by qualified personnel during daylight hours.
B. 
Location of filling plant. Filling plants may be located in the trailer court provided that the entire operation including the storage container is located not less than 50 feet from the nearest trailer, important buildings or group of buildings or line of adjoining property which may be built upon, and not less than 25 feet from any public street or highway. Such filling plant and storage containers shall be enclosed by manproof fencing or otherwise protected from tampering or physical damage. The access to the enclosed area shall be kept locked when unattended.
C. 
Filling from tank truck. Containers installed at any trailer may be filled at that location by tank truck, except that such filling shall be limited to three containers or 100 pounds at any one trailer location, provided that such filling operation is conducted not closer than five feet to the trailer exit. Filling operations in excess of this limitation shall be conducted at a filling plant conforming to § 360-44B.
D. 
Empty containers. Empty liquefied petroleum gas containers for trailer coaches shall be replaced with filled containers or removed.