Care quality commission regulate and inspect care homes and standards of care, some of which are manageed by Housing Asssociations
They have produced new regulatory guidance:
http://www.cqc.org.uk/content/regulated-activities?utm_source=Chartered%20Institute%20of%20Housing&utm_medium=email&utm_campaign=6363628_News%20and%20views%204%20November&dm_i=YRX,3SE7G,50VN0X,DNCXX,1