Change to Oceanic time tolerance?
Relatively new to Oceanic operation and in my ground school the company instructor advised that if we have a Revised Time Over a waypoint of three minutes or more we have to advise ATC beforehand. Yesterday I was reading the Jeps. Orth Atlantic Orientation chart and in bold three times Two minutes was mentioned. Has this been a recent change....is my company out of date (or am I missing something). Thanks in advance.