Fixed Nuclear Gauge Operator Licence Conditions in Qatar
October 7, 2026
10 min read
DITEC Experts, Radiation Protection Team, ALDuha Institute for Training and Environmental Consulting
The shortest of the four nuclear gauges entries
One point before anything else. Meeting the conditions in the Decision is what you can prepare for. Whether a licence is granted, and when, is a decision of the competent authority alone, and nothing in this explanation and nothing in any course is a commitment that a licence will be issued or that it will be issued within a given period. What this article does is set out the condition as the instrument states it and point to the training that bears on it.
A fixed nuclear gauge is easy to treat as something that was installed once and can then be forgotten. It is clamped to a pipe or a vessel, wired into the control system, and it measures level or density or thickness for years without drawing attention to itself. That impression is wrong on the facts: a fixed gauge is subject to periodic leak testing, shutter function checks, inspection of its source holder and mounting and of the legibility of its labels, its source has a finite working life and a defined return route at the end of it, and the shutter is closed, and the closure established by measurement, before anyone enters the beam path or works at the gauge. Item 9 of the industrial applications in the schedule attached to Decision 4 of 2007 licenses the person who operates these devices, and it is the shortest of the four nuclear gauges entries: it sets three conditions.
That shortness is the whole reason this article exists, and it needs saying carefully because it is read wrongly in both directions. The entry asks for less than any of the three gauges entries around it. It is also a licence, with conditions, attached to a named function, and the one of its three conditions that is about radiation is the one the other three entries also carry word for word. An entry that asks for less is not an entry that asks for nothing, and the licence file for a fixed gauge is, in our reviews, the file most often found incomplete, because the entry was assumed not to reach equipment that runs by itself.
The conditions are in the schedule attached to the Decision rather than in the body of it. Its issuing article does one thing only: the conditions for licences to work in the fields of radiation work, attached to this Decision, shall apply. So a reader who opens the Decision and reads the article that issues it finds a referral and no conditions.
The three conditions, and the two words in the heading
Item 9 opens with the formula that opens each of the four gauges entries, and it is worth quoting next to the heading of the item because the two are not written identically. The heading is operator of fixed nuclear gauges. The formula reads the following conditions must be present in the person who is granted a licence to work as an operator of fixed nuclear gauge devices, which inserts the word devices that the heading does not carry. We record the difference in wording between a heading and the formula under it, and we read no rule into it: we do not say that the entry is therefore about devices rather than gauges, and we do not say the two phrases mean the same. If your own installation sits on that distinction it is a question for the Ministry.
Then come three conditions, and that is all the entry contains. The academic condition is that he hold the general secondary certificate, at minimum. The training condition is that he pass a training course in radiation protection in industrial applications from an approved centre. And the third is that he pass the prescribed medical examination.
Take the academic condition on its own words, because it is written differently from the entry immediately above it in a way that is easy to miss. It names the general secondary certificate and adds at minimum, and it does not carry the words or its equivalent. The portable gauge entry at item 8 is the mirror image: it names the certificate with those words admitting an equivalent and does not carry at minimum. So between two adjacent entries, each of the two phrases appears in one and not the other. We record that and we build nothing on it. In particular we will not tell you that an equivalent certificate is excluded here, and we will not tell you that it is admitted: the item names a certificate and says nothing about equivalence, and equivalence is a matter for the competent authority. Put the question in the words of the item.
The one condition that is about radiation
Of the three conditions in item 9, one is about a school certificate, one is about medical fitness, and one is about radiation. That third one is the condition this entry turns on, and the single most useful fact about it is that the entry did not weaken it. The words are that he pass a training course in radiation protection in industrial applications from an approved centre, and they are the same words that appear in the supervisor entry at item 7, in the portable gauge entry at item 8, and in the calibration devices entry at item 10.
So the entry that asks for least asks for that course in full. The nuclear gauges course that items 7, 8 and 10 name is not named in item 9 at all, and the experience condition that items 7 and 8 carry is not in item 9 either. What item 9 does contain, besides the certificate, is the protection course and the medical examination. For an employer that is the practical shape of the entry: there is one certificate to obtain for a fixed gauge operator, and it is the one that is about radiation.
We state the absences as a reading of item 9 and we stop there. We do not read the absence of a gauges course as a statement that product knowledge is unnecessary, and we do not read the absence of an experience condition as a statement that a new employee may be assigned to the gauges on his first day. Two things sit alongside the item, and the second is as important as the first. The first is that a licensing condition is not the whole of the obligation: the protection duties the Law, the Regulation and the conditions of the facility licence place on a licensee are not reduced because one item is short. The second is the place of the medical examination. The prescribed medical examination is a fitness condition for the licence. It is not a protective measure, it does not stand in for any course the item names, and it does not stand in for anything in operational protection.
The condition also describes where the course is to come from, from an approved centre, and the item does not define that description, does not say who gives the approval, and does not say whether it attaches to a centre generally or to a particular course. So we do not answer for the Ministry. The useful step is a written enquiry naming your course and your provider together, quoting the condition, before the course is paid for rather than after the certificate is in the file.
Item 9 against the three entries around it
The table sets item 9 against the other three gauges entries on the four conditions that appear anywhere in the group. It is a reading of items 7, 8, 9 and 10 of the industrial applications, all four quoted in full on the Arabic version of these four articles, and nothing is added to it. The value of reading it as a row rather than as a column is that item 9 is the only entry in the group that is short in two respects at once.
What each gauges entry contains
| Entry | Nuclear gauges course | Protection course | Experience | Conditions in all |
|---|---|---|---|---|
| Supervisor, item 7 | Required, with nothing said about its source | Required, from an approved centre | Not less than two years, no field named | Five |
| Portable, item 8 | Required, from an approved centre | Required, from an approved centre | Not less than one year, no field named | Five |
| Fixed, item 9 | Not named in the item | Required, from an approved centre | No experience condition in the item | Three |
| Calibration devices, item 10 | Required, with nothing said about its source | Required, from an approved centre | No experience condition in the item | Four |
What a plant should do with this entry
Because item 9 asks for least, it is the entry where a plant's own practice carries the most weight and the Decision says the least. The points below are the Institute's working practice, and the items set out in this explanation require none of them.
A plant checklist for the fixed gauge entry
Name the person before you count the gauges
- The conditions must be present in the one who is granted the licence, so the licence is personal, and a population of installed gauges cannot be covered by nobody in particular. The first question on this entry is who holds it, and in our reviews it is the question most often left without a recorded answer.
- Settling that also settles who the Ministry corresponds with about the gauges, which is worth having in place before it is needed.
Do not read a short entry as a light one
- Item 9 does not contain the gauges course and does not contain an experience condition, and it carries the industrial radiation protection course in the same words the other three entries use. So the one certificate this entry asks for is the one that is about radiation, and there is no condition in the item that another person can satisfy on the operator's behalf.
Ask about the certificate and the equivalence in one letter
- The academic condition names the general secondary certificate with at minimum and without the words admitting an equivalent, where the entry above it is written the other way round. We record the difference and do not resolve it, so if your operator holds an equivalent rather than that certificate, that belongs in the same written enquiry as the question about the centre.
Decide the entry by the gauge, and ask where a person works on both
- Item 9 licenses operating fixed gauge devices and item 8 licenses operating portable gauges, and the two entries do not contain the same conditions. A technician who reads a fixed gauge on Monday and carries a portable one on Tuesday is a question to put to the Ministry, not one to answer by holding the lighter of the two licences.
Questions we are asked about this item
Our fixed gauges are sealed and nobody opens them. Is a licence needed at all?
Item 9 sets conditions for a licence to work as an operator of fixed nuclear gauge devices, and the entry does not distinguish between a gauge that is opened and one that is not. Whether a particular installation and a particular set of tasks fall inside the function the entry names is a question for the Ministry. What we can say is that in our experience the fixed gauges are the installations whose licence records are most often found incomplete, on the reasoning in your question.
Does the fixed gauge operator need the nuclear gauges course?
It is not named in item 9. The entry contains three conditions and the only course among them is the radiation protection course in industrial applications, written in the same words as in the three entries around it. We read the item as it stands, and we do not read the absence as a statement that knowing the equipment does not matter: the three other gauges entries name a gauges course, and a plant may well want its operator to hold one for reasons that are about competence rather than about this item.
There is no experience condition. Can a new hire be assigned to the gauges?
The item as it stands contains no experience condition, so no period of prior service has to be evidenced for this licence. What follows from that is narrow, and it is not that the employer's own duties shrink: the protection duties the Law, the Regulation and the conditions of the facility licence place on a licensee apply in full, and the operator still has to have passed the radiation protection course and the prescribed medical examination before a licence can be in place.
The heading says gauges and the formula says gauge devices. Does it matter?
The heading of the item is operator of fixed nuclear gauges and the formula under it licenses working as an operator of fixed nuclear gauge devices. That is a difference in wording inside one entry, and we record it rather than resolve it, which is the practice this series follows throughout. We will not tell you the two phrases are interchangeable and we will not tell you they are not. If a particular installation sits on that distinction, put both phrases in the enquiry and ask the Ministry which governs.
Can the plant's radiation protection officer hold this licence as well?
The schedule licenses functions, and a radiation protection officer licence is a different function from the one item 9 names, so it is not governed by the conditions read in this article. Nothing in item 9 speaks to holding two licences at once, so that is a question for the Ministry rather than one we answer from this entry. What item 9 does say is that its conditions must be present in the person granted this licence, so holding another licence does not displace them.
A technical note: the licence is not the protection
A technical note, and it is the most important passage on this page. The conditions in this Decision are licensing conditions, not site work instructions. Meeting them, and any licence that may follow, replaces nothing in operational protection, and no course makes anyone safe by itself. One rule governs every judgement about where a source is: it is settled by measurement, never by inference.
The measurement is made by the licensee, through a person qualified to make it, and the instrument has to respond to the radiation actually present and at the energies present. For a gamma source that means a gamma survey meter within its calibration validity and response-checked before work starts. Where the equipment also carries a source for measuring moisture content, the instrument has to respond to neutrons as well, because a gamma-only meter can read clean standing beside an unshielded neutron source.
What does not count is an inference. Not a mechanical indicator, not a position switch, not a painted mark, and not the fact that the work went as planned. And if the measurement does not establish that the source is shielded, the work stops where it is, no one approaches the equipment, and the licensee acts on his own emergency arrangements and notifies the Ministry. These are obligations on the licensee under the Law, the Regulation and the conditions of his own licence, and their place is not this Decision.
The high dose potential in a fixed installation is not the running gauge. It is the three occasions on which a person comes between the source and the material it measures: entry into the beam path, work or scaffolding at the gauge, and removal of the gauge during pipework or vessel change. On each of them the shutter is closed first and the closure is established by measurement before anyone is in that path. The gauge is also not maintenance free. Holding one includes periodic leak testing, shutter function checks, inspection of the source holder and the mounting, and checks that its labels remain legible, and the source has a finite working life and a defined return route at the end of it. A gauge whose housing has been damaged, or that has been struck during a plant change, is not something to be settled on site between shifts.
How the Institute can help
Two findings recur on fixed gauge installations. The first is a plant whose inventory of installed gauges is complete and whose licence records for them are not, because the entry was assumed not to reach equipment that runs by itself. The second is a protection certificate obtained years ago from a provider whose standing was never confirmed in writing, offered against the one condition in this short entry that describes where the course is to come from.
The Institute delivers radiation protection training for industrial applications, reviews which of the four gauges entries applies to each person and each installation on a site, drafts the enquiry to the Ministry on the standing of a named course at a named provider, on the equivalence question in the academic condition and on the prescribed medical examination, and advises on the licence records a plant keeps for installed gauges. The nuclear gauges training the Decision names is a separate qualification obtained from a provider that offers it, and the Institute does not issue it. What the Institute delivers is the radiation protection course in industrial applications that all four of these items name as a subject; whether a particular course at a particular centre satisfies the approved-centre limb of the condition is for the Ministry to say.
Scope of what the Institute does: training and consulting. Field radiation surveys are carried out through specialist partners. The Institute does not carry out laboratory analysis, instrument calibration or equipment testing.
A note on the source of a course in these four items. All four of them ask for the radiation protection course in industrial applications to come from a centre that the Decision describes with an Arabic word this explanation renders as approved. The nuclear gauges course is treated differently between the items: in the portable gauge entry it is to come from a centre described with that same word, and in the supervisor entry and the calibration devices entry the condition names the course and says nothing at all about where it is to come from. The items set out in this explanation do not define the term, do not say who gives that approval, and do not say whether it is a general status or given for a particular course. Where the description does appear, it qualifies the provider of the training and no other party. The English word is a rendering chosen for this explanation and is not a term of art: our practical reading is to ask in the Arabic wording of the item, naming the specific course and the specific provider, and to keep the answer in writing, because what the instrument leaves open the authority settles. The Institute is a licensed training provider and describes itself that way and no other way.
A note on the authority named in the text. The word the Decision uses for the authority is the Council. It is the word of a 2007 instrument whose preamble refers to the Executive Regulation issued by decision of the President of the Supreme Council for the Environment and Natural Reserves, number 4 of 2003. The body that word names no longer exists. Competence today sits with the Ministry of Environment and Climate Change, and the unit concerned is named in the organisational decisions as the Radiation Protection Department. The word Council is kept only where this explanation renders what the instrument itself says, because that is the instrument's own word; in the Institute's own advice it is written as the Ministry. Read Council as the Ministry throughout.
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 the official Arabic wording of every condition discussed here is quoted in full on the Arabic version of this article. This explanation is introductory. It is not a legal opinion, it does not replace the conditions of your own licence, and it does not replace review by the regulator. Last updated 7 October 2026.