This note (PRO 18), originally published in 1997, was reviewed by John Gelder in October 2002. This Summary page includes updates to the topic since publication.
This Note and PRO 17 review a number of issues which arise out of consideration of the natural environment and human health, and which affect the content of National Master Specification Systems (NMSs) and, therefore, their use by project specifiers. They also, incidentally, consider some of the general assumptions and limitations of NMSs. PRO 17 looked at choice, guidance and sources. This Note considers context and publishing, and offers some recommendations.