Writing Clear Policies and Procedures with Playscript 
The Playscript procedure writing style is widely known for its plain language, content organization, readability and usability for all kinds of audiences. Developed by Leslie Matthies over 40 years ago, Playscript has been used by hundreds of leading (and other) organizations worldwide as their procedure standard. Major consulting firms have trained their professional staff in its use as a primary work process documentation technique. Extending several of Playscript’s design elements to policy writing provides an organization with policies and procedures that have a uniform look and feel. A leading publisher recently did this, using Playscript as the style model for their commercially produced Controller's Policies and Procedures Manual.
Fleming, J. Richard. STC Proceedings (1999). Articles>Business Communication>Policies and Procedures