The Anglican Church of Australia, known officially until 1981 as the Church of England in Australia and Tasmania, became self-governing in 1961. Its general synod agreed that the "Book of Common Prayer" was to "be regarded as the authorised standard of worship and doctrine in this Church". After a series of experimental services offered in many dioceses during the 1960s and 70s, in 1978 "An Australian Prayer Book" was produced, formally as a supplement to the book of 1662, although in fact it was widely taken up in place of the old book. The AAPB sought to adhere to the principle that, where the liturgical committee could not agree on a formulation, the words or expressions of the "Book of Common Prayer" were to be used, if in a modern idiom. The result was a conservative revision, including two forms of eucharistic rite: a First Order that was essentially the 1662 rite in more contemporary language, and a Second Order that reflected the Liturgical Movement norms, but without elements such as a eucharistic epiclesis or other features that would have represented a departure from the doctrine of the old Book.