Book Description: This book covers each of the equations identified in the publication BCSP Examination Reference Handout. In addition to those 100+ questions another 30+ questions were added that were thought to be useful to the practicing professional. Many of the disciplines we are required to understand have strong mathematical under pinnings, e.g., safety engineering, system safety, noise and radiation protection. For each equation the following information is provided: theory and background, a worked out example of the application of the equation, units for all terms in the equation, a graphic of the equation and a reference for further reading. The book is arranged with one equation per page and the back of the page is purposely left blank for the user's notes on specific applications of that equation. The end result is a simple yet thoroughly useful reference book.