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Card Acquiring Service
          A program of the Bureau of the Fiscal ServiceCAS Menu
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          Fiscal Service A-Z Index
                This A–Z Index lists all Fiscal Service content. You can also view just the Programs & Services.A
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                      About the Fiscal Service

                        Accessibility Statement

                        ACH - Automated Clearing House

                        ACH Payment Schedule: Recurring Benefits and Military Active Duty, Reserves, and Benefits

                        AWG - Administrative Wage Garnishment

                        ARM -  Agency Relationship Management
						
						APG - Agency Priority Goal
                        
                        America's  Finance Guide

                        Annual Fiscal Service Letters

                        Annual Report, United States Government

                        Anti-Harassment Policy Statement

                        ASAP - Automated Standard Application for Payment

                B

                      Bank Management System
                        Budget Surplus/Deficit Publications

                        Bulk Data Formats for Salary and Vendor/Miscellaneous Payments

                        Business & Institutions, Services for

                C

                      CAS - Card Acquiring Service

                        Careers

                        CMIA - Cash Management Improvement Act

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                        CRS - Centralized Receivables Service
						
						Certifying Officer Training

                        CFS - Consolidated Financial Statements of the United States Government

                        Check Claims

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                        Check Reclamation Guide: The Gold Book

                        CIR - Collections Information Repository

                        Circular 176: Depositaries and Financial Agents of the Federal Government (31 CFR 202)

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                        Combined Statement of Receipts, Outlays, and Balances of the United States Government

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                D

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                        Debit Card

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                        Direct Express®

                E

                      EagleCash

                        eCollections

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                        EFTPS - Electronic Federal Tax Payment System

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                F

                      FAST - Federal Accounts Symbols and Titles (FAST Book)

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                I

                      IFCS - Intragovernmental Fiduciary Confirmation System

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                        IPP - Invoice Processing Platform

                        Imprest Fund

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                        International Treasury Services (ITS.gov)

                J

                      Judgment Fund

                K

                      KFC - Kansas City Financial Center (now Federal Disbursement Services)
                        KFC Dispatch (now Payment News)

                L

                      LPA - Legislative and Public Affairs

                M

                      MBDP - Minority Bank Deposit Program

                        MMC - Military Meal Checks Program

                        Modernization, Innovation, and Payment Resolution (now Payment Integrity and Resolution Services)

                        MSPD - Monthly Statement of the Public Debt

                        MTS - Monthly Treasury Statement

                N

                      National Payment Center of Excellence (NPCE)(now Federal Disbursement Services)

					    National Payment Integrity and Resolution Center(now Payment Integrity and Resolution Services)

					    NPCE Payment News(now Federal Disbursement Services)

                        Navy Cash/Marine Cash

                        News from the Fiscal Service

                O

                      OTCnet

                P

                      PIRS - Payment Integrity and Resolution Services

                        PACER - Payments, Claims and Enhanced Reconciliation

                        PAM - Payment Automation Manager

                        PICOE - Payment Integrity Center
						
						PFC - Philadelphia Financial Center (now Payment Integrity and Resolution Services)
						
                        Pay.gov

                        Payment Formats

                        PIR - Payment Information Repository

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                        Publications, Fiscal Service

                R

                      Rates & Sureties			                       

                        Reclamations, Checks

                        Reference & Guidance

                        RFC - Regional Financial Center 

                        Reports

                S

                      SAM - Shared Accounting Module

                        SGL/USSGL - United States Standard General Ledger

                        SLGS – State and Local Government Securities

                        SPS - Secure Payment System

                        Savings Bonds

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                        Standard General Ledger, United States (USSGL)

                        State and Local Government Securities Overview

                        State and Local Tax Withholding

                        Statements

                        Status Report of U.S. Treasury-Owned Gold

                        Stored Value Card
                        SDA – Summary Debt Accounting

                        Surety Bonds

                        Systems Access

                T

                      TIN - Taxpayer Identifying Number

                        TRO - Tax Refund Offset

                        Tax Refund Offset FAQ                        

                        Training Opportunities
						
						TAS - Treasury Account Symbol
						
                        TAR - Treasury Annual Report Appendix 
						
						Treasury Bank Mentor-Protégé Program

                        Treasury Bulletin

                        TCIS - Treasury Check Information System

                        Treasury Check Security Features

                        TCMM - Treasury Collateral Management & Monitoring

                        TFM - Treasury Financial Manual

                        TMA - Treasury Managed Accounts
						
                        TOP - Treasury Offset Program

                        TROR - Treasury Report on Receivables

                        TGA - Treasury General Account

                        Treasury Securities and Programs

                        TSS - Treasury Securities Services

                U

                      Unclaimed Assets, FAQ

                        U.S. Debit Card

                        USA Spending

                        USSGL - United States Standard General Ledger

                        Unpaid Foreign Claims
                V
                      
                      Vendor Payment Guidance


- Bureau of the Fiscal Service
- Card Acquiring Service
- About Card Acquiring Service

# CAS Overview

CAS partners with a Financial Agent and Merchant Processor to provide merchant services to our federal agencies. Through the success of this partnership, CAS is able to offer payment card processing through a half-dozen acceptance points and provide a robust portfolio of products and services such as: Europay, MasterCard & Visa (EMV), End-2-End Encryption, Near-Field Communication and Tokenization. The CAS footprint continues to grow as the program processes at approximately 10,000 locations over 19,000 point-of-sale endpoints.

# How CAS Works

**Existing Card Acquiring Service Operations are Extensive and Complex.** Processing payment card transactions typically involves two primary stages:

- **Transaction authorization**, where a payment request initiated with a card account is sent electronically through
            various parties in the payment card ecosystem (i.e., from the accepting merchant/agency to the acquirer/processor, and routed
            through the card network to the issuing bank), with an approval or decline message returned back to the acceptance point; and,
- **Clearing and settlement**, where card transactions are reconciled with the acquirer/ processor, routed via the
            card networks and settled against issuing and acquiring accounts. CAS card transactions are accepted throughout the day, with
            next day funds availability. Transactions settle to the Treasury’s account at the Federal Reserve prior to 2:00 pm ET for the
            prior day’s transactions.

The diagram below demonstrates the payment card processing from authorization (red) through clearing and settlement
          (blue and green, respectively).

## Card Acquiring Service 101

This presentation introduces the CAS program, it’s history, and how to get enrolled.

## CAS 101 Presentation

## What is Card Acquiring Service: An Introduction

Last modified 11/19/21

Card Acquiring Service

A program of the Bureau of the Fiscal Service



- Home
- About
- Getting Started
- Rules and Security Requirements
- News
- Resources
  Resources Overview
	  User Materials and Guides
	  FAQs
- Resources Overview
- User Materials and Guides
- FAQs
- Training
- Contact Us



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