Schedule 12 to the Principal Regulations is amended as follows:(a) by omitting item 1 from Part 1 and substituting the following:(b) by inserting after paragraph (c) in item 3 in Part 2 the following:(c) by inserting after paragraph (b) in item 3 in Part 3 the following:(d) by omitting item 1 from Part 4 and substituting the following:(e) by inserting after paragraph (b) in item 3 in Part 4 the following: