1. Short title This Act may be cited as the Block, Report, and Suspend Suspicious Shipments Act . 2. Block, report, and suspend suspicious orders (a) Clarification of process for registrants To exercise due diligence upon discovering a suspicious order Section 312(a) of the Controlled Substances Act ( 21 U.S.C. 832(a) ) is amended— (1) in paragraph (2), by striking and at the end; and (2) by striking paragraph (3) and inserting the following paragraphs: (3) determine whether an order or series of orders is suspicious, taking into consideration— (A) any unusual size, pattern, or frequency of the order or series of orders; and (B) any customer business model, dispensing patterns, prior orders, or other characteristics that may indicate the order or series of orders is suspicious, despite the particular order or series of orders not exhibiting an unusual size, pattern, or frequency; and (4) upon discovering suspicious circumstances regarding an order or series of orders, and in a manner consistent with the other requirements of this section— (A) decline to fill the order or series of orders, establish and maintain (for not less than a period to be determined by the Administrator of the Drug Enforcement Administration) a record of the order or series of orders, and notify the Administrator of the Drug Enforcement Administration for the purpose of including information on such order or series of orders in the centralized database established under subsection (b)(1); or (B) exercise due diligence as appropriate and— (i) (I) if the due diligence fails to dispel all of the indicators that give rise to the suspicion that, if the order or series of orders is filled, the drugs that are the subject of the order or series of orders are likely to be diverted, decline to fill the order or series of orders; or (II) if the due diligence does dispel all such indicators, fill the order or series of orders