It is not mandatory
The powerboat should pass to the stern of the sailboat to avoid its wash causing a problem for the sailboat To avoid a collision, the powerboat should avoid crossing ahead of the sailboat.
Your boat should have a data plate near the stern. (It's normally screwed to the inside of the stern.) On it will be the max horsepower you can run, because no two boats are alike.
Port (red) and Starboard (green) running lights and a white light which will be mounted on either the stern or the masthead.
I have an SLT 780 & the VIN plate is riveted to the stern fiberglass directly above the impeller housing. Steve
stern
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You give no options but the standard lights depend on things like length overall. A minimum would be port and starboard running lights, masthead light and stern light
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anchor from the bow, rather than the stern
stern
from the stern
Running lights are on the bow (front) and are green to starboard (right) and red to port (left). A white stern (rear) light completes the three lights necessary on a sailboat. All three can also be together at the top of the mast, and are called a tri-light. If the boat can motor there will also be a steaming light half-way up the mast that must be on while motoring at night.