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Home >>  Research  >>  Contracting for Support Personnel

Invoicing
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Invoicing terms are included in the contract award. It is the responsibility of the contractor to submit invoices as specified in the contract. Contractors will not be paid until an invoice has been submitted and certified for payment. The government has 30 days to pay once the certified invoice is received by the paying office.

When an invoice is received by NPS, it will be validated against the terms of the contract. The invoice will then be forwarded to the Acceptor of Deliverables for the specified contract. The Acceptor of Deliverables will certify via return email that the hours worked and the other direct costs were “received”.

If an invoice is disputed, the RSPO will work with the acceptor of deliverables and contracting officer to resolve issues.

Agency/Category

Fleet and Industrial Supply Center (FISC)

General Services Administration (GSA)

Invoicing

The Acceptor of Deliverables must certify invoices immediately upon receipt so that contractors are paid in a timely manner.

See note below*

* Per the Prompt Payment Act, GSA has set a time limit on certification of invoices. If invoices are not certified by the client representative within five calendar days, GSA will initiate a constructive acceptance and payment will be approved by GSA. In order to facilitate review/acceptance of deliverables, the RSPO contracts staff will certify invoices for payment upon receipt from GSA IT Solutions. As a parallel process, the contracts staff will forward invoices by e-mail to the Acceptor of Deliverables and follow-up with a phone call that an invoice is pending review/validation. The RSPO contracts staff will initiate an “Assignation Form: Validation of Receipt of Contractual Services” with each GSA contract awarded. The “Assignation” form will assign certification of invoices to the RSPO contracts staff. Certification will still be required from the Acceptor of Deliverables. Certification for payment by the contracts staff does not invalidate the requirement for the Acceptor of Deliverables to validate the invoice. The assignation of responsibility allows for the contractual processes to continue without unnecessary delay. If for some reason, an invoice certified by the contracts staff is disputed by the Acceptor of Deliverables, the RSPO contracts staff will take necessary action to stop payment in order to resolve issues.

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