For more information, click the name of the code.
Accrington - Hyndburn Accredited Landlord Scheme (HALS)
Barrow in Furness      - Barrow in Furness Accredited Lettings Scheme
Bath       - Property Accreditation Scheme
Blackburn      - Blackburn with Darwen Accredited Landlord Scheme
Bolton - Bolton at Home
Bournemouth - The Bournemouth Responsible Landlord & Tenant Accreditation Scheme
Bradford - Best BD Homes
Bradford - Unipol Code of Standards (Bradford)
Bridlington - East Riding of Yorkshire Council
Brighton - Brighton and Hove Landlord Accreditation Scheme
Bristol - Bristol Student Accommodation Accreditation Scheme
Bristol - Bristol Student Accommodation Accreditation Scheme
Burnley     - Burnley Good Landlord and Tenant Scheme
Camborne  - Private Rented Accreditation Scheme
Cambridge - Cambridge Landlord Accreditation Scheme
Canterbury - Canterbury Student Housing
Cardiff           - Accreditation Plus
Chester         - Accredited Property Scheme
Consett       - Derwentside District Council
Coventry - Coventry Accredited Property Scheme
Darlington - Landlord Accreditation Scheme (LAS)
Derby - Derby Student Accommodation Accreditation Scheme
Dorset      - Residential Landlord Accreditation Scheme
Durham       - Code of Standards
Gainsborough      - WLDC Voluntary Landlords Accreditation Scheme
Gateshead    - Gateshead Private Landlords Accreditation Scheme
Halifax       - Voluntary Accreditated Landlord Scheme
Hastings    - Hastings Accreditation Lettings Scheme (HALO)
Huddersfield - Kirklees Landlord and Property Accreditation Scheme
Ilford - Three Boroughs Accreditation Scheme - Redbridge
Kingston Upon Hull   - HMO and Student Accommodation Accreditation Scheme
Kirby-in-Ashfield     - Approved Property Scheme
Leamington Spa - WDC Student House Accreditation Scheme
Leeds - Leeds City Council Landlord Accreditation Scheme
Leeds - Unipol Code of Standards (Leeds)
Liverpool - Code of Practice for Liverpool Student Landlords
Liverpool - Liverpool City Council - CLASS
London - Three Boroughs Accreditation Scheme - Barking
London - Landlord Accreditation Scheme
London - Preferred Landlords
London   - London Landlords Accreditation Scheme
London    - Middlesex University Accredited Accommodation Scheme
London     - National Landlords Association
Loughborough - Accreditation Scheme
Lytham St Annes - North West Landlords Accreditation Scheme
Manchester - Code for Manchester Student Landlords
Manchester  - Bury Landlords Accreditation Scheme
Merthyr Tydfil - Merthyr Tydfil Landlord Accreditation Scheme
Morecambe - Accredited Property Scheme
Neath - Private Rented Housing Accreditation Scheme
Newcastle-upon-Tyne       - Accreditation Scheme for Student Accommodation
North Staffordshire - North Staffordshire Landlord Accreditation Scheme
Northampton - Northampton Student Accreditation Scheme
Norwich          - Eastern Landlords Scheme
Nottingham - Broxtowe Borough Council
Oldham - Landlord Accreditation Scheme
Ormskirk - West Lancashire Accreditation Scheme
Peterlee - District of Easington
Poole - Landlord and Tenant Accreditation Scheme
Reading     - Landlord Accreditation Scheme
Rochdale - Rochdale Landlord Accreditation Scheme
Romford - Three Boroughs Accreditation Scheme - Havering
Runcorn - Halton Borough Council - Landlord Accreditation Scheme
Sale - RLAAS
Salford       - Landlord Accreditation Scheme (LAS)
Scunthorpe - North Lincolnshire Council Accreditation Scheme
Seaton Delaval      - Approved Landlord Scheme
Sheffield - Student Shared Housing Accreditation Scheme
Sheffield - Sheffield Responsible Landlord Scheme (RLS)
Shefford  - Landlord Accreditation Scheme
Southampton - Accreditation Scheme for Student Housing
Stroud - Fit to Rent Scheme
Swansea - Swansea Landlords Accreditation Scheme
Swindon     - Swindon Landlords
Telford - Landlord's Accreditation Scheme
Tyne & Wear - South Tyneside Private Rented Accreditation Scheme
Wimbourne     - East Dorset Landlords Accreditation Scheme
Winsford   - Landlords Accreditation Scheme
Wirral - Wirral Landlord Accreditation Scheme
Wolverhampton      - University of Wolverhampton

To find codes by region click here.