(a) Each member that is subject to the requirements of SEA Rule 17a-13 shall make the counts, examinations, verifications, comparisons and entries set forth in SEA Rule 17a-13.
(b) Each carrying or clearing member subject to the requirements of SEA Rule 17a-13 shall make more frequent counts, examinations, verifications, comparisons and entries where prudent business practice would so require. In addition, each such carrying or clearing member shall:
(1) Receive position statements as frequently as good business practice requires, but no less than once per month with respect to securities held by clearing corporations, other organizations or custodians. Each such member shall at least once per month reconcile all such securities and money balances by comparison of the clearing corporations' or custodians' position statements to the member's books and records and promptly report differences to the contra organization and such differences shall be promptly resolved by both. Where there is a higher volume of activity, good business practice may require a more frequent exchange of statements and their reconciliation; and
(2) At a maximum of seven business days after each security count, enter all unresolved differences into a "Difference" account, for that security count. The Difference account shall identify the unverified securities and reflect the number of shares or principal amount long or the number of shares or principal amount short of each security difference and the date of the security count that disclosed such difference. Thereafter, any adjustment of a difference position shall be made by entry into such account.
