the protestant religion and presbyterian church act 1707 has the constitutional distinction of being named in the regency act 1937 as a statute that may not be amended during a regency. the regency act 1937 provides that a regent may not assent to a bill to amend the act of 1707, or any bill affecting the line of succession. when the regency bill was debated in the house of commons, the attorney-general explained, "the safeguarding of this particular act of the scottish parliament was expressly mentioned in the act of union, and that is the historic reason why it appears here." an act of the parliament of england, 6 anne c.8, had made similar provision for the church of england in 1706 but is not mentioned in the regency act.