How to apply for Member (MNucI)

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Who should apply?

Nuclear professionals working at all levels in the nuclear sector and its supply chain. You need to have at least 3-5 years’ experience in the Nuclear sector (if you’re less experienced we’d welcome an application 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 Delta®, 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 of the NI provides independent verification of your nuclear professionalism, whatever your specialism, job role and work context.

Professional registration

The NI is licensed by three bodies, 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, Engineering Technician and Registered Environmental Technician. 

Find out more about each of the registration pathways: EngineeringScience ; Environment 

The Science Council run online workshops throughout the year: Chartered Scientist registration workshops

How do I apply?

Complete the relevant Membership Application Form selected from the table below, and return along with a full CV, copies of certificates, CPD records and the application fee (please see checklist at the end of the application form).

Your completed application should be emailed to 


Closing date for the next Membership Committee to consider membership and professional registration applications is Thursday 2nd November 2023. 

Application Form Table - please click on the forms below

Membership only application forms

Membership and Registration application forms

Current NI Members or Fellows wishing to add Registration

MF1 Member application

MF101 Membership and Chartered Engineer

RF401 Chartered Engineer


MF102 Membership and Incorporated Engineer

RF402 Incorporated Engineer


MF103 Membership and Engineering Technician

RF403 Engineering Technician


MF104 Membership and Chartered Scientist

RF404 Chartered Scientist


MF 105 Membership and Chartered Environmentalist

RF405 Chartered Environmentalist


MF106 Membership and Registered Environmental Technician

RF406 Registered Environmental Technician

Please note: To apply for Fellow plus a professional registration grade, see How to apply for Fellow 

Guidance for Applicants - Please download the guidelines below

MF1 Series guidance - for Member only applications or Member plus professional registration

Membership Resources Library

MF 4 series guidance – for current Members or Fellows adding a registration grade


If you haven't found the answer to your question, please don't hesitate to contact the Membership Team who will be happy to assist. 

phone-greyonwhite 03303 410574