Oklahoma Local Form 1007-1F Payment Advices Certification is a document that is used to certify payment advices issued by Oklahoma state government agencies. It is a required form for all Oklahoma state agencies when making payments to vendors for goods and services. The form is used to document the payment amount, the vendor’s name and address, a description of the goods or services provided, the date of the payment, the name of the person authorizing the payment, and the signature of the person certifying the payment. There are two types of Oklahoma Local Form 1007-1F Payment Advices Certification forms: the original form and the duplicate form. The original form is used to certify the payment advice and should be kept in the state agency files. The duplicate form is a copy of the payment advice that is sent to the vendor along with the payment.