Every attempt is made for accuracy in every portion of the guide. 

It pains me to find mistakes, but I post them here in an effort for complete clarity and most importantly to aid in better exam prep. All of these updates are shown below for your aid in preparing for the exam and are also incorporated in future editions of the Prep Guide. We hope you find this helpful.

7th Edition PE Prep Guide Errata:
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Week 1 Plan (p19): SFPE referenced page should be page 533 and not 553.
Problem 33 (p152): Supplied Reference should note NFPA 13 Chapter 10 for this problem. 
Problem 45 (p180): Supplied Reference should note NFPA 12 Chapter 5 instead of NFPA 13 Chapter 5. 
Problem 57 (p196): Supplied Reference should note NFPA 72 Annex B. 
Problem 66 (p208): The solution divides gravity by 2, while the formula listed in NCEES and FPH do not divide by 2. The answer should be 10.2 kg/s. 
Problem 104 (p252): Supplied Reference should note NFPA 101 Chapters 7 and 16.

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[​End of Errata]