The Three Principles Behind Every Radiation Licence in Qatar
September 19, 2026
9 min read
DITEC Experts, Radiation Protection Team, ALDuha Institute for Training and Environmental Consulting
Three tests, in order
Before the Council licenses anything, and for as long as the licence lasts, three separate questions are asked. Is the practice worth doing at all. Is the exposure it causes as low as it reasonably can be. And does the dose stay under the limit. They sit in Articles 4, 5 and 6 of the Executive Regulation, and they are the reason an application is approved or refused - the paperwork in Articles 8 and 17 only demonstrates them.
The order matters. A practice that fails the first test is not saved by excellent shielding, and a practice that passes all three still needs the licence.
First: is it justified at all
Article 4 provides that no practice, and no sources falling within a practice, may be licensed unless the Council considers it justified - for instance because it is likely to produce a benefit for the exposed individuals or for society sufficient to offset the radiation harm it may cause, having regard to social, economic, health and other relevant factors.
The benefit is weighed against the radiological detriment, and the weighing is the Council's to do. That is why an application that describes what the equipment is but never says what it is for is answering the wrong question.
Two categories the text declares unjustified outright
Anything for human consumption or application to the body
- Practices involving food, drink, cosmetics, or any other goods or product intended for human use by mouth, by inhalation, through the skin or by topical application - where the effect would be to increase exposure by deliberately adding radioactive material or activating the goods.
Frivolous use in consumer goods
- Practices leading to a frivolous use of radiation or of radioactive materials in certain goods or products, such as children's toys, jewellery and personal ornaments - toys, jewellery and personal ornaments are named in the text.
Second: as low as reasonably achievable
Article 6 provides that, with the exception of therapeutic medical exposures, optimal protection and safety must be achieved by keeping the magnitude of the individual dose, the number of people exposed and the likelihood of exposure to the lowest level that can reasonably be reached, taking economic and social factors into account.
Three quantities, not one: the size of the individual dose, the number of people exposed, and the likelihood that an exposure happens at all. A design that lowers one by raising another has not optimised anything.
The four principles the same article requires in every case
| # | The principle |
|---|---|
| 1 | Determining the optimum protection and safety procedures in the prevailing circumstances |
| 2 | Setting the criteria needed to constrain exposures, prevent accidents, and mitigate their consequences if they occur |
| 3 | Meeting the protection and safety criteria when adopting procedures and engineering controls |
| 4 | Drawing on accumulated experience and on new developments |
Third: the dose limit, and what it does not cover
Article 5 provides that normal exposure of individuals is restricted so that the total effective dose, or the total equivalent dose to any exposed organ or tissue, arising from the accumulation of doses from all previous exposures, does not exceed the dose limits the Committee sets.
Two things follow that facilities regularly miss. The limit applies to the accumulation of all previous exposures, not to one job or one month in isolation - which is why a worker's dose history follows the worker. And the numeric values are set by the Radiation Protection Committee, so the binding figures are the ones the Committee has issued and the ones written into your own licence conditions.
And the article ends with an exclusion worth reading twice: the dose limits do not apply to medical exposures arising from licensed practices. A patient's diagnostic or therapeutic dose is not governed by the occupational or public limit - it is governed by justification, optimisation and the guidance levels in the medical chapter instead.
Two definitions that decide arguments
Executive Regulation, Article 1
| The term | The definition |
|---|---|
| Controlled area | A workplace where a radiation worker may receive an exposure greater than three tenths (0.3) of the dose equivalent limit - a numeric threshold, not a judgement call |
| Radiation worker | A person who works permanently in a field involving ionising radiation, or who performs work requiring his presence in a place where radioactive sources are used - presence in the place is enough; operating the source is not required |
| Practice | Any activity, or group of connected activities with a single purpose, in which one or more radioactive sources are used, and whose conduct exposes people or the environment to the hazards of ionising radiation |
| Licence | An authorisation granted by the Council or the competent body on the basis of a safety assessment, accompanied by specified requirements and conditions which the licensee must observe - the conditions are part of the licence |
Frequently asked questions
Who decides whether my practice is justified?
Article 4 gives that to the Council: a licence may not be granted unless the Council considers the practice justified. The applicant's job is to set out the benefit clearly enough for the assessment to be made.
Is there a number that defines a controlled area?
Yes. Article 1 sets it at more than three tenths (0.3) of the dose equivalent limit. It is a measured threshold, which is why area monitoring is what establishes it.
Do dose limits apply to patients?
No. Article 5 ends by providing that the dose limits do not apply to medical exposures arising from licensed practices. Medical exposure is controlled by justification, optimisation and guidance levels instead - not by a ceiling.
Our shielding is excellent - is that enough?
Shielding serves the second and third tests. It does not answer the first. A practice the Council does not consider justified is not licensed however well it is engineered.
How the Institute can help
The next article turns from principles to the calendar: how long before you need the licence you must apply, and exactly which documents each of the four licence types requires.
Related services: preparing the safety assessment and the radiation protection programme that a justification case rests on, shielding calculations, and RPO training.
Scope of what the Institute does: training and consulting. Field radiation surveys are carried out through specialist partners working in the field. The Institute does not carry out laboratory analysis, instrument calibration or equipment testing.
This explanation is published for awareness by the radiation protection team at ALDuha Institute for Training and Environmental Consulting. The English text is an explanation, not a certified translation: the Arabic text published in the Official Gazette governs in case of any difference, and this article does not replace the official text or advice from the competent authority. Last updated 19 September 2026.