St John Ambulance has adopted Sorp 2005 a full year early.
The organisation's 2004 annual report has been compiled under newly announced guidelines from the Charity Commission, even though they only come into force for accounting periods after April this year.
St John says it is the first major charity to adopt the new Sorp.
Important changes include reporting of the organisation's objectives and whether those objectives have been achieved.
Future objectives and plans are also to be included.
"Practical action in the community is at the heart of all we do," said chief executive Roger Holmes. "That's why we wanted to be among the first charities to adopt these new regulations in our annual report, so that people have a practical guide to St John Ambulance's operations and future plans."
St John's objectives, listed in its annual report, include increasing adult and youth membership. It notes that the number of volunteers has grown by 1 per cent, from 43,705 to 44,147. Its core objective is "the protection and preservation of public health".
To this end, it gave 539,690 people instruction in first aid and health and safety topics.
St John said the accounts required few changes from last year's format.
More time was needed to produce the report, but the charity said it was strongly in favour of the new style of accounts required by the Sorp.