Section 73.1 - What does this part do?(a) This part provides the conditions under which we will allow you to: (1) Use electronic signatures or digital signatures executed to electronic forms instead of traditional handwritten signatures executed on paper forms; and(2) Electronically submit certain forms to TTB or, where applicable, to other agencies.(b) This part does not require you to submit forms to us electronically. 68 FR 58601 , 10/10/2003, as amended at 79 FR 17033 , 3/27/2014