Form 18 — Uniform Gas Annex: Everything a Business Owner and Building Manager Must Know

What is Form 18 — the Uniform Gas Annex?

Form 18 is the "Gas System Compliance Annex — Confirmation of a Compliance Inspection of the Gas System and Its Conformity to Standard 158", one of the uniform forms published by the National Fire and Rescue Authority for business and property licensing purposes. In short: it is the document that certifies in writing that the gas system in a business or property has been inspected, found sound, and meets the requirements of Israeli Standard (SI) 158 — the central standard for liquefied petroleum gas (LPG) installations and for gas-supply systems.

"Uniform annex" means that the content and structure of the form are identical across all local authorities in the country. This way a business owner and building manager know exactly what is required of them — regardless of the city in which they operate, and without each authority inventing its own wording. It is part of the "business licensing reform" approach: fewer physical visits, more reliance on signed certifications by qualified professionals.

What the Form Aims to Prevent — and Why Gas Specifically

The risk that Form 18 stands against is clear and frightening: a gas leak, an explosion and a fire. Natural gas and LPG are highly flammable, and a small failure can turn into a disaster within seconds. The annex focuses on gas precisely because it is a hidden system — piping inside walls, cylinders in the yard, connections behind equipment — that cannot be "assessed by eye" without a professional inspection.

The inspection under SI 158 verifies, among other things, that:

• The piping and fittings suit the type of gas, with no corrosion or dangerous wear
• There is no leak — usually by means of a pressure and tightness test of the system
• Adequate ventilation exists in the gas rooms, kitchens and cylinder-storage area
• The safety and shut-off devices are installed and function as required
• Safety distances, signage and emergency procedures meet the requirements

When all of these are certified by the signature of a qualified professional, the building becomes genuinely safer — for the employees, the customers and the neighbors of the entire building.

The Regulatory Background — Where It Fits Within the Law

The Business Licensing Law, 5728-1968, provides that certain businesses require fire authority approval before receiving a business license. The National Fire and Rescue Authority adopted a set of uniform forms and annexes that allow the business owner to demonstrate compliance with the safety requirements — instead of a physical inspection of each and every business. The gas annex (Form 18) is one of them, and it relies on Israeli Standard (SI) 158 and on the body of gas regulations (safety and licensing).

It is important to understand the practical implication: a business that does not attach the annex as required may fail to receive a business license, or receive a conditional license whose validity is suspended until the requirements are completed. The annex is not a "formality" — it is a threshold condition for a substantial portion of businesses that use gas.

Who Must Submit Form 18?

The guiding rule: a business that requires fire authority approval under the Business Licensing Order and that uses gas in its cooking, production or service process. In practice, this usually means:

• Restaurants, cafés and bakeries — use of gas for the kitchen
• Industrial kitchens and food plants
• Hotels, hostels and institutions with central kitchens
• Event halls and catering
• Other businesses in which gas is part of the licensable activity

When do you submit? Mainly in three situations: (1) when opening a new business as part of an initial license application; (2) when renewing the business license; (3) when a change is made to the gas system, or when a fire inspector demands an updated certificate.

Who Is Qualified to Complete and Sign the Annex?

Here lies the nuance that many business owners miss: not everyone who works with gas is allowed to sign the annex. The inspection and certification must be performed by a qualified gas professional — a duly certified gas inspector/technician, and for complex systems also a certified gas planner — who holds a valid license to work on the specific type of gas and type of installation.

• Standard commercial and business LPG systems — usually a gas inspector/technician certified for LPG is sufficient.
• Natural gas systems and complex/industrial installations — a higher level of certification is sometimes required, and for certain installations a gas planner as well.

Two simple checks before you hire: make sure the license is valid, and that the type of license matches the type of gas (natural gas or LPG) and the type and size of the installation. The fire inspector may reject a certificate signed by someone not qualified for the specific type required — and then the entire process goes back to the start.

Validity of the Certificate and Inspection Frequency

The validity of the annex is generally set according to the term of the business license and the demand of the local authority, and therefore it varies from business to business and it is not correct to cite a single uniform number. Two important points that many miss:

• Do not assume the certificate is "valid forever" — check the expiry date noted on the annex itself and in the license conditions.
• Any material change to the gas system — adding equipment, replacing a line, switching suppliers or changing the type of gas — requires a re-inspection and an updated certificate, even if the license itself is still valid.

What Does the Fire Inspector Actually Check?

When an inspector arrives — during a routine check, following a complaint, or at renewal — they do not settle for paper. They compare what is written in the annex against the situation on the ground:

• Does the annex exist, is it duly signed, and is it valid?
• Does the situation on site match what was certified in the form?
• Have changes occurred after signing that were not reported and not approved?
• Are the shut-off devices accessible, marked and unobstructed?
• Does the staff know the shut-off procedure and how to act in an emergency?

Common Mistakes That Cost Dearly

• A professional not certified for the correct type of gas. LPG certification is not necessarily natural-gas certification, and vice versa. Check the license before hiring.
• The annex is valid — but reality changed. Added a cooktop? Replaced a boiler? Even if the license is valid, the change requires a new certificate. A gap between the form and reality can lead to an immediate correction demand or to closure of the business.
• No copy available at the business. The annex must be accessible for review. A file "stored in the office" does not always help at the moment of inspection.
• An annex in a previous owner's name. On a change of ownership, a certificate signed in the previous owner's name is not valid for the new owner — a new inspection and annex are required.
• Renewing the license without refreshing the annex. Even if the authority renewed a license "automatically," the fire inspector may discover the annex was not updated.
• A certificate without a site visit. An annex signed without a physical inspection is a false document — and a criminal liability. Avoid such "quick fixes."

Practical Tips for the Business Owner and Building Manager

• Keep the annex and the professional's license together. Both may be required at inspection.
• Mark the expiry date on your calendar and start handling the renewal well in advance — ordering an inspector at the last minute can delay the business license.
• Any change to gas equipment — ask the inspector in advance. Even a "small" change may require a fresh certificate.
• Verify the certification. Make sure the professional is authorized for your type of gas and installation, and that the license is valid.
• For the house committee and building manager: if the building has a shared gas system and contains businesses requiring licensing, an inspection of the shared system may also be required — check this with the licensing coordinator at the authority or with a safety consultant.

How Domera Helps You Track Form 18

Building managers and business owners who use Domera can store the uniform gas annex details in the property's digital file — the inspection date, the expiry date and the details of the qualified professional. The system automatically reminds you before validity lapses, and the supplier directory lets you locate a licensed gas inspector faster — without searching under pressure at the last moment.