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February 2024
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Gas Piping Inspection Under Local Law 152

Local Law 152 passed in 2016 as part of a package aimed at gas line safety. Requires building owners to have their buildings’ exposed gas piping system inspected. This inspection must be conducted by a licensed master plumber (LMP).

The LMP looks for signs of corrosion or deterioration, illegal connections, and non-code-compliant installations. The building owner then submits a GPS2 to DOB via the Department’s online portal.

gas piping inspection

If your gas pipe has a regulator, it’s a good idea to get it checked every so often as well. The person who performs the inspection may suggest that you replace it if it’s too old or if there are signs of corrosion. He will also check for any accessories that are connected to your gas appliance, such as safety devices, chimneys, and ventilators. He will make sure that there’s adequate ventilation in the area where your appliances are located as well. If there isn’t, it could lead to carbon monoxide poisoning.

Gas Pipe inspections are required by Local Law 152 passed in 2016. They must be conducted once every four years by a licensed master plumber (LMP) like or an individual who has the proper credentials to work under an LMP’s direct and continuing supervision.

During a gas piping inspection, the inspector will look for gas leaks, corrosion, and illegal connections. The LMP will inspect all exposed piping within a building’s point-of-entry up to and including, but not including, tenant spaces. They’ll also do a walkthrough of the entire building using an approved gas detection device.

If you’re due for a gas inspection, it’s best to contact a reputable LMP as soon as possible. They’ll be in high demand as the year comes to a close, and you don’t want to risk missing your deadline.

After an inspection, the LMP will provide a Gas Piping Periodic Inspection Report to the building owner. Then, within 60 days of the inspection, they’ll submit a Gas Piping System Periodic Inspection Certification to the DOB (GPS2) that is signed and sealed. Buildings that don’t have gas piping systems must also submit GPS2 documentation to the DOB from a registered design professional such as a licensed architect or professional engineer. This documentation must be submitted through a DOB portal dedicated to the submission of GPS2s. A new GPS2 must be submitted every four years after the initial inspection. There’s no grace period for late submissions.

The inspection process starts with a visual examination of the pipeline, where inspectors look at the overall workmanship of the pipes. This includes checking the quality of welds, as well as the presence of pits, scratches, dents, and other defects that might compromise the integrity of the pipe. Inspectors also check for consistency with the original purchase order and product specifications. In addition, they review all relevant documentation like field test reports, welding procedure specifications, and quality control records.

The next step is to conduct a pressure test on the pipe. This is done by applying an air, carbon dioxide, or nitrogen pressure to the pipeline and ensuring that it will hold this pressure for at least 15 minutes without a perceptible drop in pressure. Inspectors will also use a soap test, where they spray the pipe with water to see if any bubbles form. If they do, the leak must be repaired immediately.

Finally, the inspector will examine the piping’s interior condition using non-destructive testing (NDT) methods. These techniques can include ultrasonic testing, magnetic particle inspection, radiography, and other methods that allow them to evaluate the internal condition of a pipeline without causing any physical damage to it.

If the inspector finds any conditions that pose a threat to public safety, they will notify the building owner and report this information to DOB. If an issue is deemed to be an immediate danger, the gas will be shut off, and the Fire Department will be called to respond. The building owner will then be given 120 days to repair the problem and file a certificate of correction with DOB.

The best way to ensure that your gas piping inspection is conducted properly is to hire an experienced and licensed master plumber, or LMP. Before hiring an LMP, make sure they are licensed by DOB by using the Know Your Construction Professional tool, which allows you to search a licensee by name or business, as well as view their disciplinary and voluntary surrender records.

Under Local Law 152, which was passed in 2016, it’s required that all buildings except those classified as occupancy group R-3 have their gas piping inspected by a licensed master plumber (LMP) or someone with the proper qualifications working under an LMP, on a four-year schedule. After an inspection, the LMP must submit a Gas Piping Periodic Inspection Certification signed and sealed to DOB.

While the inspector is doing their check, they will also check the condition of your gas barrel. This includes making sure that it’s in the correct position – it should be placed in the vertical position to avoid any leakages. They will also make sure that it’s free from any protective grease or films, and that the 0.528+” gage pin is centered in the small cutout of the barrel.

The inspector will also examine your pipe, and look for cuts or any other damages. In addition, they will check the temperature of your gas and look for any gas odors that might be present. Finally, they will test the flame of your gas equipment and make sure it’s blue – red or yellow flames could indicate incomplete combustion and waste of energy.

If any issues are found, the inspector will provide the building owner with a Gas Piping Inspection Report and identify any corrective actions that need to be taken. Within 60 days of the inspection, the building owner must complete all corrections and have them reinspected, then file a Gas Piping System Periodic Inspection Certification to DOB.

If you are due for your next Gas Piping Inspection, then give us a call at Our team of certified inspectors will ensure that your piping is safe and up to code. We can even help you get a one-time 180 day extension of your reporting date if you are unable to meet your deadline. Just be sure to have your LMP or other qualified person fill out the appropriate online form, and make sure they are using an accurate and up-to-date checklist to prevent any errors during the inspection process.

Local Law 152 requires all buildings to have their gas piping inspected on a four-year schedule. Only a licensed master plumber (LMP) or certain persons with the right qualifications working under an LMP can perform an inspection. The LMP then submits a report to the building owner within 30 days of performing the inspection. The building owner must file a Gas Piping System Periodic Inspection Certification (GPS2) with the Department of Buildings within 60 days of receiving the report.

The inspector checks a variety of things during the inspection, such as the gas regulator, pipe, and safety devices. They also check that the area is properly ventilated to prevent carbon monoxide poisoning. They may also recommend that you move your stove to a different location in case the current location isn’t giving enough ventilation.

If your gas piping inspector finds any issues, the first thing they’ll do is shut off the gas to that part of your building. They’ll also call the utility company to request an emergency service. Once the fire department has made sure there is no danger, your gas can be turned back on.

A gas piping inspection isn’t just for your kitchen, but for any space that uses a gas stove or other appliances. That includes public spaces, hallways, corridors, and boiler and mechanical rooms. The inspector will note any non-code compliant installations or illegal connections and will check for a proper clearance between the vent and combustibles.

You’ll have to keep all documentation related to the inspection for 10 years after the date of submission and inspection. If you decide to hire an LMP, you can find their license number and check their status online using DOB’s License Search tool and disciplinary or voluntary surrender records.

If you don’t have any gas piping, you can submit a Gas Piping System Exemption Certificate to the DOB from a registered design professional, such as a licensed engineer or architect. You can submit this document every four years in place of the regular gas piping inspection. You can download the form from DOB’s website.