Legislation - As of February 22, 2010, a new federal law allows people who can legally possess firearms under applicable federal, state, and local laws, to legally possess firearms in this park. Refer to Section 512 of the Credit Card Accountability Responsibility and Disclosure Act of 2009, Public Law 111-24, 123 Stat. 1764-65.
Park User Responsibility - It is the responsibility of visitors to understand and comply with all applicable state, local, and federal firearms laws before entering this park. As a starting point, please visit Missouri Revised Statutes, Chapter 571.
Weapons Prohibited in Federal Facilities - Federal law also prohibits firearms in certain facilities in this park; those places are marked with signs at all public entrances. Refer to 18 U.S.C. § 930.
on the Rivers (drug and alcohol laws strictly enforced, no kegs, no beer bongs, quiet enforced, no cliff jumping or rope swinging, etc)
Compendium - Rules and Regulations for Ozark Riverways (.pdf file)
Code of Federal Regulations, Title 36 (Regulations regarding National Parks, Forests and Public Lands in the USA)