Book of Alternative Services

The Book of Alternative Services is the contemporary, inclusive-language liturgical book used alongside the Book of Common Prayer (1962) in a number of parishes of the Anglican Church of Canada. Unlike the BCP, it uses the Revised Common Lectionary.

The BAS was published in 1985 based on a number of experimental liturgical texts that had been in use in the 1960s and 70s. It sparked some opposition from traditionalists who questioned the Book's theological and linguistic soundness. The mobilization against the BAS has been led by the Prayer Book Society of Canada. The controversy has been called the "trad-rad" debate (i.e. "traditional" vs. "radical").

The BAS contains two services of the Eucharist-one contemporary and one more in line with the language of the 1962 Prayer Book. The latter text is sometimes known as the "Toronto Rite' and is a bone of contention amongst Prayer Book Anglicans.

Use of the BAS varies from parish to parish. In some congregations, the principal Sunday service is according to the BCP, while in others, the contemporary liturgy dominates. However, in most dioceses, the trend is increasingly toward the BAS.

Bishop Michael Ingham is the author of an important apologia for the BAS, called Rites for a New Age.