My fourth writing tip is to strive for clarity in everything you write.  Repeated editing is key to achieving this because you want to be as succinct as possible without losing the meaning of your words.

• Ensure acronyms are explained and include a glossary where appropriate.  Don’t leave the reader frustrated by screeds of unexplained letters.
• Shall, Must, Should – use an instruction hierarchy where compliance is expected.  It will ensure that mandatory activities are easily identified.
• If you need a decision to be made, then be crystal clear about it at the start of the document.  Explain the options available and give your recommendations because you are the expert.
• Review for repetition and consistency of message to avoid confusion.  If you are working across a suite of documents aim for a single point of truth to remove the risk of conflicting guidance.