Can I make a payment online without a credit card?

For membership, product invoices, or new orders, please send payments to:

CLINICAL AND LABORATORY STANDARDS INSTITUTE
PO Box 645766
PITTSBURGH, PA 15264-5255

For overnight payments, please send payments to:

PNC Bank C/O CLINICAL AND LABORATORY STANDARDS INSTITUTE
Lockbox Number 645766
500 1ST AVE
PITTSBURG, PA 15219

We only accept credit cards online but purchase orders, credit cards, wire transfers, or check payments can be emailed, mailed, or faxed in. Please include the invoice number and/or CLSI account number with the payment sent in.