Immigrationboards.com

Please give some advise
I have held IRL Resident Permit from beginning of year 2015
I have got ESOL B1 Certificate was accepted when I applied this visa.
Now I plan to applying British Citizenship.
I would like to know that my ESOL B1 Certificate its still allow to use it.
again.

ESOL has stopped being accepted since November 2015.

Not sure if yours will be accepted or not but probably safer to do a new test on the ho approved list.