Yes it is correct, or at least universal.  I am sure there was an earlier thread on this topic.

Morning Phil

This is one of those QQ that keeps the ISO auditors excited when they ask about your legislative register and want you to be able to cite chapter and verse about the 17 amendments to a particular item of legislation.

Which is completely unnecessary, at least in the UK, if you simply keep defaulting to the current version on legislation.gov.uk.

I can assure you that when I worked for the HSE many moons ago and wrote a prosecution report about e.g. a defective scaffold, I did not write Regulation X of the Construction (Working Places) Regulations 1966 as amended by SI 1970 No 1457, SI 1974 No 1975, SI 1984 No 235 or whatever - including whichever code of regulations it was that said that instead of 6 feet 6 inches you were to read 2 metres.

I wrote Regulation X of the Construction (Working Places) Regulations 1966.

It might have occasionally have been Regulation X(A) where an extra requirement had been added and given the number X(A).

Keep it simple!

Please do NOT look up all those Statutory Instruments - they were probably made but they were just numbers off the top of my head which bear absolutely no relevance to the long since revoked Working Places Regs (RIP).