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March 15, 2018, Forms 1 and 2 of the Regulation are revoked!


According to ONTARIO REGULATION 106/18* (X-ray Safety), Forms 1 and 2 are revoked from the regulation and new forms are now available for the Registration of Employers in Possession of an X-ray Source (Form 2010E) and to apply for Review of a Permanent X-ray Source (Form 2011E).

Form 2010E: According to subsection 5 (1) of Reg. 861 “X-ray Safety”, under the Occupational Health and Safety Act: “An X-ray source shall not be used at a workplace unless the employer who has possession of the X-ray source is registered with a Director”. Complete and submit this form to apply for registration.

Form 2011E: According to subsection 6 (1) of Reg. 861 “X-ray Safety”, under the Occupational Health and Safety Act: “An X-ray source shall not be installed or used in a permanent location and an X-ray source that is designed for portable or mobile use shall not be installed or used regularly in one location unless an application for review, together with plan location drawings, of the installation have been reviewed by and are acceptable to an inspector.” Complete, attach floor plans and other documents, and submit this form to apply for a review.

Both of these forms are available on the Service Ontario Forms repository and can be found on the radiation protection service webpage at: 

* Made under the Occupational Health and Safety Act on February 21, 2018 and filed and published on e-Laws on March 15, 2018, AMENDING REG. 861 OF R.R.O. 1990 (Reference:

Need Assistant for Regulatory Submissions or X-Ray Shielding Calculation?

The Radiation Safety Institute of Canada has considerable expertise in shielding calculations appropriate for each regulatory environment and for a large variety of x-ray equipment, whether used for human diagnostic x-rays or industrial applications.

Using scale drawings, equipment specifications and expected equipment workload, the Radiation Safety Institute can provide advice on the thicknesses of lead or concrete shielding required in walls, doors, floors and ceilings to ensure that radiation levels are kept below regulatory expectations.

The Institute can also assist with regulatory submissions in most provinces. Please note that we cannot provide this service for dental or medical x-ray submissions in Ontario, as the Institute is responsible for reviewing such submissions on behalf of the Ontario Ministry of Health and Long Term Care.

The safety of structural shielding for x-ray emitting devices below 1 MeV is governed by the applicable provincial or territorial regulations. Health Canada provides useful guides that include information on how to perform radiation shielding calculations, as does the US National Council on Radiation Protection (NCRP). It is important, however, that you select the guideline and calculation methods deemed acceptable in your province or territory, as not all methods are acceptable for regulatory agencies in all provinces.

More information can be found at:

Contact us today to assist you with your shielding design and (where possible) regulatory submission!