Choose and pay for the suppressor at your Class 3 FFL dealer. The dealer will help you complete a form with the model and serial number of your suppressor.
You will need to attach a passport photograph, fingerprint card, and check or money order for $200 to your application forms.
You send notification to your local chief law enforcement officer. Under the old rules, you needed to get an official to approve and sign the paperwork. Now, there is no approval needed, just the notification. If you are legally eligible to buy the silencer, they are no longer in a position to prevent the purchase.
If the suppressor is not already in stock, it arrives at your dealer and is held until BATFE approval is complete.
BATFE will return to your dealer one of your Form 4 copies complete with a nifty green tax stamp affixed, which allows you to take possession of the silencer.
Bring your trust paperwork to the dealer along with a check or money order from the trust made out to BATFE.
Choose the suppressor and pay for it from the trust itself. (It's a good idea to get a simple checking account in the name of the trust.)
The dealer will help you complete a BATF form with the model and serial number of your suppressor. The dealer submits your paperwork and payment.
Each trustee (responsible person listed in the trust paperwork) must submit a fingerprint card and passport photograph with the application. Even though one trustee is likely making the purchase, each individual must submit every element of the package. If the trust has made an approved purchase within the previous two years, and each of the current responsible individuals has fingerprints and photo on file, then no new prints and photos are necessary.
As with an individual purchase, notification must be made to the local chief law enforcement officer.
If it's not already in stock, the suppressor arrives at your dealer and is held until BATFE approval is complete.
BATFE will return to your dealer one of your forms complete with tax stamp affixed, and you take possession of the silencer.