yes, I agree it is the FCC that issues station and operator license (I now have them in my grubby little hands), but is the USGC that issues Documentation numbers. I mistakenly assumed when you said ask FCC for temporary Documentation numbers that you were referring to the Documentation number of the ship, which is on the application for the FCC license. My apologies. I did talk to the USCG about getting an expedited or temporary Documentation number and they did tell me it ain't going to happen. In order to take the boat into Mexico you need a Temporary Import Permit
or the boat will be seized (140 boats in 2013 were) or more commonly now a marina will not let you in. To get a TIP you need either Documentation or State Registration OR a certification
from an agent that they have been applied for. I am using an agent as I am taking what is referred to as "offshore delivery" and will immediately take the boat to Ensenada, Mexico. Like a Mexican fishing
license, the station and operator licenses are required to have equipment
on board - whether you use them or not. My concern is that in clearing into Mexico they can (but have never asked me) for copies of those licenses. The quick response by the FCC was very helpful,.
Thanks for you help!