Section 226E of the Copyright Act spells out procedures for using TPM circumvention devices legitimately.

Canadian academic Michael Geist, a leading commentator on ACTA, in a Computerworld , remarked how New Zealand law, particularly on the TPM issue, has "carved out a 'made-in-NZ' approach that is frequently cited as a model for other countries considering similar legislation."

Some TPMs rely on digital information recorded on the medium, which can be masked by a "device" as simple as a black felt-tip pen. Commentators have facetiously asked whether this will make it illegal for stationery shops to sell such a pen if they suspect that it may be used for circumvention.

The full list of necessary amendments, as supplied by Groser's office is below.