ADCH opens for Full Membership applications at 4 periods in the year. The opening periods in 2026 are as follows:

• Monday 09 February 2026 to Sunday 01 March 2026
• Monday 18 May 2026 to Sunday 07 June 2026
• Monday 10 August 2026 to Sunday 30 August 2026
• Monday 02 November 2026 to Sunday 22 November 2026

If your organisation is eligible for Affiliate Membership, see our page here. Not sure which membership category to apply for? Use our checker here.

Want a handy reminder when we are next open for Full Membership applications? Sign up here for alerts!