3275 Walnut Avenue
Signal Hill, CA 90755

Sample Pickup Requests: Ext. 5
Sales Inquiries: Ext. 3 or



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Chain of Custody (COC)

Advanced Technology Laboratories issues a unique Chain of Custody form that must accompany samples that are sent to our lab for analysis. For convenience, ATL now has an electronic version in Microsoft Excel available for download. Our clients are able to save themselves lots of time by typing and saving most fields of information, then printing the forms in advance of sample collection. This is especially useful for large projects where paperwork can be extensive. Keep in mind that some fields cannot be edited by computer; items requiring handwritten signatures or for Lab Use Only are locked.

[ Download COC Fillable Form ]

[ Download COC Printable Form ]

[ Download COC Excel (xlsx) Form ]


Statement of Qualifications

[ Download Form ]


Bottle/Container Request Form

[ Download Excel Form ]


Credit Application Form

For repeat customers, ATL offers payment terms of net 30 days. To be eligible for invoicing, please complete and submit our Credit Application Form.

[ Download Form ]


Credit Card Payment Form

For first-time customers, ATL requires complete upfront payment for testing, which can be done by check, cash or credit card. For payment by check, please remit to Advanced Technology Laboratories, PO Box 92797, Long Beach, CA 90809. For payment by credit card, please download our credit card payment form.

[ Download Form ]


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