"RST Engineering" wrote in message
...
Except that the pilot (61.133 (b) (1)) will have stamped on their
certificate a prohibition about carrying persons for hire more than 50
miles *or* at night without an instrument rating. I'd like to see a
General Counsel interpretation as to whether this clause would also
prohibit flight instruction for hire to these limitations.

Since a flight instructor can instruct with only a 3rd class medical,
clearly they are not actually exercising the privileges of their Commercial
certificate while instructing, and so just as clearly any restrictions on
the Commercial certificate do not apply.

My suspicion is that it probably WOULD be interpreted with these
limitations, so cross country or night instruction would be out, and would
severely limit the instructor rating.

Your suspicion is not correct. Not having an instrument rating in no
significant way limits an instructor teaching a primary student.

Pete