Oklahoma Natural Gas Contractor

Natural gas piping is covered by the IFGC up to 125 psig operating pressure, while LP-gas piping is covered only up to 20 psig.

Piping inside buildings is generally limited to 5 psig unless special conditions are met, whereas the overall IFGC scope covers natural gas systems up to 125 psig.

Where a general and specific requirement conflict, the specific requirement governs; where sections specify different materials or methods, the most restrictive governs.

An attic passageway less than 6 feet high may be at most 20 feet long from opening to appliance, while one at least 6 feet high for its entire length may extend up to 50 feet.

Steel pipe and CSST are exempt from the yellow-label identification requirement, whereas all other exposed gas piping must bear a yellow label marked 'Gas' in black letters at intervals not exceeding 5 feet.

The prime contractor bears overall responsibility for OSHA compliance for all work under the contract and cannot be relieved of it, while subcontractors share joint responsibility only for their portion of the work.

A 2A extinguisher must be within 100 feet travel distance from any point of the protected area (one per 3,000 sq ft), while a 10B extinguisher must be within 50 feet of any location where more than 5 gallons of flammable liquid or 5 pounds of flammable gas are in use.

Employers with more than 10 employees must maintain a written emergency action plan, while employers with 10 or fewer employees may communicate the plan orally and need not maintain it in writing.

Bored holes must be at least 2 inches from the top or bottom of the joist and cannot exceed one-third the joist depth, while notches at joist ends cannot exceed one-fourth of the joist depth.

When two or more meters on the same premises supply separate consumers, the piping systems must not be interconnected on the outlet side of the meters.

A competent person under OSHA is specifically defined as one who can identify existing and predictable hazards AND has authorization to take prompt corrective measures to eliminate them.

Pipe sizing is normally based on the total connected load assuming all appliances operate simultaneously at full capacity; diversity of load may only be used as the basis where it can be established.