council, its 'town council' which could act alone in some matters such as town twinning, whereas Welwyn Garden City did not and therefore had no separate representation. The Act introduced 'agency', where one local authority (usually a district) could act as an agent for another authority. For example, since road maintenance was split depending upon the type of road, both types of council had to retain engineering departments. A county council could delegate its road maintenance to the district council if it was confident that the district was competent. Some powers were specifically excluded from agency, such as education. The Act abolished various historic relics such as aldermen. The office previously known as sheriff was retitled high sheriff. Many existing boroughs that were too small to constitute a district, but too large to constitute a civil parish, were given charter trustees. Most provisions of the Act came into force at midnight on 1 April 1974. Elections to the new councils had already been held, in 1973, and the new authorities were already up and running as 'shadow authorities', following the example set by the London Government Act 1963. The new local government areas The Act specified the composition and names of the English and Welsh counties, and the composition of the metropolitan and Welsh districts. It did not specify any names of districts, nor indeed the borders of the non-metropolitan districts in England – these were specified by Statutory Instrument after the passing of the Act. A Boundary Commission, provided for in the Act, had already begun work on dividing England into districts whilst the Bill was still going through Parliament.The English Non-metropolitan Districts (Names) Order 1973 (SI 1973/551)The Districts in Wales (Names) Order (SI 1973/34) In England there were 45 counties and 296 districts, in Wales there were 8 and 37. Six of the English counties were designated as metropolitan counties. The new English counties were based clearly on the traditional ones, albeit with several substantial changes. The 13 historic counties of Wales, however, were abandoned entirely for administrative purposes, and 8 new ones instituted. The Act substituted the new counties "for counties of any other description" for purposes of law. This realigned the boundaries of ceremonial and judicial counties used for lieutenancy, custodes rotulorum, shrievalty, commissions of the peace and magistrates' courts to the metropolitan and non-metropolitan counties. The Act also extended the rights of the Duchy of