ABSTRACT
The increase in strategic environmental assessment (SEA) application around the world has been accompanied by a proliferation of guidance material. Typically, when SEA is introduced, be it at international, regional, national or district level, some sort of manual or practical advice document on how to undertake SEA will follow. In addition to documents that deal with the SEA process generally, there is also an array of guidance that addresses SEA for a specific level of planning, such as the policy level, for a particular sector, such as transport, or for a certain topic, such as health or climate change.
