"BORROWING CERTIFICATE" shall mean a borrowing request executed by the
Borrower in substantially the form attached hereto as Exhibit A or
such other form as may be acceptable to the Bank in its sole and
absolute discretion.

http://sec.edgar-online.com/2003/03/27/0000892569-03-000765/Section32.asp

Информация к размышлению:
An asset-based borrowing formula tells both the lender and the borrower what is available to borrow against. Although the borrowing base can be accounts receivable, inventory, or other liquid assets, it will most likely be accounts receivable for publishers. The eligible borrowing base is current accounts receivable, which means invoices less than 90 days old. Then the eligible borrowing base is reduced by the lender’s required reserve requirements, ineligible assets, and interest payments when due.

Keeping the revolving line of credit borrowing base as high as possible requires keeping ineligible assets as low as possible. Ineligible assets include old current assets (including old inventory and old A/R), customer concentrations higher than 10% of the sales base, customers’ lack of creditworthiness, out-of-country sales or inventory, and affiliated or common shareholder transactions.

After determining what’s available in the borrowing base, you’ll complete the lender’s "Borrowing Certificate" form, which shows the current borrowing base, the availability on the revolving credit line, and the amount of the advance requested. The borrowing certificate must be signed by an authorized representative of your company. Once the lender gets the properly completed borrowing certificate and approves the advance, it should fund the advance request within 24 hours.

http://www.pma-online.org/articles/shownews.aspx?id=1856