Yes - here's an example of the air pump that was fitted to chassis 068 when it was Federalized.
I believe the efforts here on this car were what finally convinced the DOT/EPA to expand the eligible model year range on F1s under "Show or Display" from 1993 thru 1995 up to 1998, to include all the cars. This car was done by JK Technologies with final signoff from the EPA on Sept 25th, 2003.
So silly they have to even waste the time and money for this - the 'Show or Display' exemption should have been written to overlook all EPA requirements as well for the incredibly small numbers of cars that were going to be qualified under it. Just a few more years though and we'll be at the 21 year mark where I am fairly certain emissions devices won't need to be fussed with any longer with new arrivals.
>8^)
ER