From 19 January 2026 applications for Associate Member of the Society will have to be made using the process below.
Those who apply and gain Associate Member class of the Society can use the designatory letters AMSLL.
Applicants must hold, as minimum CIBSE Affiliate membership. Applications must be made online, and the following information and documents will be required when submitting your application.
The following information.
1. Basic Application Information (Name, Address, DoB, Email Address, Telephone Number).
2. Proposers Name and Email address. NB The sponsor must be:
- An Associate Member, Member or Fellow of SLL,
- An Associate Member, Member or Fellow of CIBSE.
- Registered IEng or CEng with any Engineering Council nominated institution,
- Professionally registered within the construction industry (CIOB, RICS, RIBA), or
- Employer.
NB A direct family member or a member of CIBSE/SLL staff cannot sponsor the application. They must have known you for two years.
The following documents in separate files.
3. Qualification Certificates and transcripts in English (upload document(s)), also member certificates from other Professional Institutions.
4. CV – including any relevant education, employment details including percentage of time working in light and lighting, and specific roles/tasks undertaken (upload document).
5. Either a 2,000 to 2,500 words Engineering Practice Report or if already an Incorporated Chartered Engineer a 1,500 to 2,000 word Competence Statement covering the SLL Associate Member Criteria (based upon UK Spec competencies A, B, D and E).
6. Organisation Chart (upload document).
For more information and before you write your application please read Guidance Document (December 2025).
There are two templates available to help you complete your reports.
- Respond to the competencies in the competency table - word or pdf, or
- Write a report which includes responses to all competency requirements - word or pdf.
All members of SLL must agree to the requirements of to the CIBSE Code of Professional Conduct.
Guidance Document (December 2025), including SLL member criteria and checklist.
To apply for AMSLL and you are a member of SLL and/or CIBSE.
To apply for AMSLL and you are not a member of CIBSE and/or SLL.
(If you wish to apply using the new system before before the 19 January you can. Just upload your Engineering Practice Report or Competence Statement instead of the Professional Review.).
NB If your aim is to apply for IEng, go to CIBSE Member Membership.
