Schedule 6 to the Principal Order is amended as follows:(a) by inserting after item 6024 the following:(b) by omitting item 6038 ;(c) by inserting after item 6085 the following:(d) by omitting item 6139 ;(e) by omitting item 6150 and substituting the following:(f) by omitting item 6273 and substituting the following:(g) by omitting item 6297 ;(h) by omitting item 6316 ;(i) by omitting item 6319 ;(j) by omitting item 6337 ;(k) by omitting item 6377 ;(l) by inserting after paragraph (c) in item 6392 the following: