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When flying for a US air carrier internationally, what regulatory obligations you must adhere to?

You are over NE Canada preparing to go oceanic on your way to Europe on the NAT OTS.  You are attempting to use CPDLC/ACARS to send your NAT RCL but Gander Oceanic is not responding.  What are your options?

What might be very helpful if you need to ditch?

While crossing the ocean, each pilot should maintain their own Master Document for oceanic plotting purposes in case one pilot makes an error and they need to compare them later.

The use of “Free Text” requests and responses are common place in CPDLC; you can use them just like sending a text from your phone.

You get cleared for a “Y-Route” through the Gulf of Mexico and you notice some opposite direction traffic approaching on TCAS.  Your Captain suggests you program a 1.5nm left offset for SLOP.  What do you do?

Along your oceanic route of flight you notice a strong thunderstorm.  In order to request a weather deviation via CPDLC, which Downlink Message (DM) will you use and what information will you be required to fill in to complete the message before sending?

You are reviewing you route of flight on a westbound North Atlantic oceanic flight. After your coast in point near Canada (DORYY) you notice the following in your route of flight: DORYY N792A KJOHN. What is it and what does it mean?

You see “PBN/L1S1” in Section 18 “Other Information” of your international flight plan, what does this mean?

Which of the following is NOT a “PACOTS” Track routing?