The 2015 NSCP is largely based on ACI 318-14. The biggest change engineers noticed was the reorganization of chapters. In previous codes, provisions were grouped by topic (e.g., all beams in one chapter). In the 2015 NSCP, provisions are grouped by member type.
For example, Chapter 9 now specifically covers "Beams," Chapter 10 covers "One-Way Slabs," and so on. This makes "Simplified Design" easier because you only need to reference one chapter for a specific member, rather than flipping through the whole code.
When factored shear (Vu) > ΦVc: