Nuclear Institute Member (MNucI)

Becoming a Member (MNucI) of our thriving professional community provides independent verification of your nuclear professionalism, whatever your specialism, job role and work context.

Recognition as a professional Member of the Nuclear Institute provides independent verification of your nuclear professionalism, whatever your specialism, job role and work context.

Member grade is appropriate if you:

Work in the nuclear sector, including the supply chain, in a technical or non-technical role that contributes to the safety, security and effectiveness of the nuclear industry
Can demonstrate how, through the work you do, you meet the Nuclear Professionalism Standard®
Possess effective interpersonal skills
Commit to the NI Code of Conduct and to maintain your continuing professional development
Have at least 2 years’ experience in the nuclear sector

Who should apply to be a Member?

Nuclear professionals working at all levels in the nuclear sector and its supply chain. You need to have at least 2 years’ postgraduate experience in the Nuclear sector (if you’re less experienced, or have been working at an apprenticeship level, we’d welcome you to join at the Associate grade).

NI Members are practising nuclear professionals from a wide range of technical and non-technical disciplines, who apply personal behavioural standards and exercise judgement based on an understanding of the Nuclear Professionalism Standard, as applicable to their role and work context, to ensure their decisions and actions support nuclear safety and security, both now and in the future.

NI Members also commit to comply with the NI Code of Conduct.

Recognition as a professional Member (MNucI) of the NI provides independent verification of your nuclear professionalism, whatever your specialism, job role and work context.

If you don’t have an NI Member or mentor working with you on your application and you’re not sure if you’re at the right level to apply, or aren’t sure how to demonstrate that you meet the criteria, we’re here to help! We will have an expert pre-assess your suitability and give you suggestions on how to have the best chance of being accepted.
Please send your CV and any specific questions that you have to membership@nuclearinst.com with the subject line “Pre-assessment request”.

If you are an Affiliate or Associate, we recommend our self-service mentor matching platform to find a dedicated member to discuss your application with. Just choose the relevant competency from the pre-set “hard skills” list when creating your profile (“support for applying for Member or Fellow”, “support for applying for CEng”, etc).

Professional Registration

We are licensed by the Engineering Council, the Science Council and the Society for the Environment, to assess applicants for entry onto the respective professional registers, at the registration grades of Chartered Engineer, Chartered Scientist, Chartered Environmentalist, Incorporated Engineer and Engineering Technician.

Applicants should check the eligibility criteria before completing an application:
CEng
IEng
EngTech
CSci
CEnv

Applicants for CEng or IEng via the standard route must have qualifications recognised by the Engineering Council (check here).

Applicants for CSci via the Standard route must be educated to Master’s degree level in a scientific subject.
Applicants for CEnv must be educated to Master’s degree level.

If you don't have the right qualifications, please ask us for an equivalence application to support your CEng or IEng, CSci or CEnv application.

Please note that you must either be, or be in the process of applying to become, an NI Member or Fellow before you can apply for an additional professional registration. If you have a question, please contact membership@nuclearinst.com

How do I apply?

Complete the relevant application form for Member (MF1) and email it to applications@nuclearinst.com with the supporting documentation requested on the form.

If you are also applying for professional registration, please ensure to include the relevant RF-X form.

And if you don’t meet the standard academic criteria for the registration you’re applying for, please also include the relevant MFER-X form.

You can find the application forms for all grades and registrations on the Nuclear Professionalism Standard page

If also applying for Professional Registration, please make sure you've read the previous section (Professional Registration).

All enquiries should go to membership@nuclearinst.com

Fees and Payment

View our current Membership Fees

We will add your application fee (£60 for Associates or £90 for non-members) after your application has been received but before your application goes to committee. This will be added to your online account and should be paid before the committee date. We will email you once it's been added online.

Any fees for Member, Fellow or Professional Registration will be added after the grade or registration has been officially approved. If you are part of a company scheme and they are paying for you, we will invoice them directly. Otherwise, we will either add the fees to your online account, or set up a Direct Debit if you returned a DD form.

2026 Application dates

The closing date for the Membership Committee to consider membership and professional registration applications in 2026 are:

27 January 2026 (for 19 March Membership Committee)

5 May 2026 (for 18 June Membership Committee)

29 July 2026 (for 10 September Membership Committee)

20 October 2026 (for 1 December Membership Committee)

Please note: If we receive your application more than a week prior to the deadline, we will take the opportunity to pre-assess it. We will give you feedback if there are sections where enhancement would give you a better chance of acceptance. However, if we receive it within a week of the deadline it will go for assessment as is.