Section 504.2 - Fees for deposit and requisition of microbial cultures(a) Depositors of microbial cultures must pay a one-time $670 user fee for each culture deposited on or after December 1, 2015.(b) For cultures deposited on or after December 1, 2015, requestors must pay a $40 user fee for each culture distributed. 80 FR 74966 , Dec. 1, 2015