ATTN Plumbers and/or Bathroom Remodelers familiar with code and its intent:

IRC 2015 P705.1 General (under Installations), Item #1 - states that where plumbing fixtures come into contact with walls or floors, they must be watertight.

IPC 2015 Section 405.5 Water-Tight Joints (under Installation of Fixtures) - states that joints formed where fixtures make contact with walls or floors must be sealed.

With respect to a toilet, do these code sections simply calling out the use of ONLY a wax ring or the use of BOTH a wax ring AND caulk around the toilet’s base?