For those of you that like to keep up with the official navigation
rules, and all boat operators should, there is a new governmental
document which describes the changes and the rationale behind them. It
also offers some interesting insights into the complexities of federal
rule making. The new rules are effective on August 1, 2014. Do not
assume that the rule changes do not apply to you because they are
fairly broad in scope.

http://www.gpo.gov/fdsys/pkg/FR-2014-07-02/pdf/2014-14413.pdf