28.57Following second reading, all public bills in the Commons must, unless specifically exempted by the House, be considered in committee, when amendments may be moved and debated, and each clause and schedule separately approved. While the great majority of bills are subject to programme orders and are considered in public bill committees (see Chapter 39) other alternatives are available, including the Committee of the whole House and select committees. The committal of a programmed bill is provided for in the programme order (see para 28.58 ). Otherwise, committal is mainly regulated by Standing Order No 63, under which a bill which has been read a second time is automatically committed to a public bill committee unless the House otherwise orders.