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Muskegon Area First PTAC: Helping Local Businesses Flourish

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PTAC - Federal Regulations

Employer Identification Number - Employer Identification Number (EIN), also referred to as Federal Tax Identification Number (TIN), is a nine-digit number used to identify a business entity. Questions relating to, if you should apply for a number or not, can be answered by clicking on the link below. Also a link on how to apply for a number is provided below!

Small Business EIN Information

EIN Application

Dun & Bradstreet - Dun & Bradstreet (D&B) is a business specializing in providing credit and financial reports on registered companies for a fee. The identifier for registered companies is referred to as a DUNS number. In order to do business with the federal government you must obtain a DUNS.

Already have a D-U-N-S Number? Please note that 1 in 2 companies requesting a DUNS number already has one. To see if your company is already listed click here, DUNS CHECK, and search in the light yellow box area.

If you are not listed already in D&B, then call 1-866-705-5711 or email  This e-mail address is being protected from spambots. You need JavaScript enabled to view it  to find out how to request a free DUNS number for government contractor purposes only.

System for Award Management - In order to do business with the Defense Department and many other departments within the Federal government you must first register in the System for Award Management (SAM). This registration provides government contractors with a profile of your company. Necessary banking information is required, so that you can be paid electronically. If you are a small business by the Small Business Administration (SBA) size standard definition, your company will have a record created in the SBA's Dynamic Small Business Search (DSBS) database. A link with the SBA icon will be provided at the end of your SAM registration to access the DSBS site to update a few fields, like Capabilities Narrative, for example.  Many of the fields will already be populated from your SAM registration.

SAM Homepage

Quick Help Guides

Please consult the System for Award Management User Guide for complete and detailed information and instructions.

Dynamic Small Business Search - Small business research can be accomplished by going to the Dynamic Small Business Search site. Information on small businesses can be obtained by performing a variety of searches.  You can search for Government Certified types of business, like 8(a), for example.  The search can also be narrowed to a specific county within a state.  Nature of Business is yet another way to search.  There are many ways to search in this database, and government agencies use DSBS.

Dynamic Small Business Search

Online Representations and Certifications Application (ORCA)
A company's Representations and Certifications Application is now completed during the SAM registration. An active SAM registration must exist to be able to respond to a Federal solicitation. The online Representations and Certifications Application is an e-Government initiative that was originally developed to replace most of the paper based Offeror Representations and Certifications (FAR 52-121-3). This online registration is accessible and updated through SAM.


North American Industrial Classification System (NAICS Codes) and Standard Industrial Classification Codes (SIC Codes) are numerical codes designed by the U.S. Government in order to create uniform descriptions of small business types and size standards.

Lookup NAICS Codes

Lookup SIC Codes

Small Business Size Standards

Product Service Codes (PSC) and Federal Supply Codes (FSC) are numerical codes designed by the government to create descriptions for products and services. They are not specific to small businesses and do not describe business size. A-Z are for services and 10-99 are for products.

Lookup PSC/FSC Codes