Why do I need to provide business documentation to receive VSP credentials?

The NASTF Registry is only available for use by individuals working in businesses (sole proprietorships, partnerships and corporations) that have a U.S. Federal taxpayer identification number or Canadian Business Number (which must be provided during the application process), are properly licensed and registered in all municipalities in which they do business, are in good standing in the jurisdictions where they conduct business and whose primary business provides repair or replacement services directly to the registered owners of the automobile for which the security related service information is being obtained to include privately owned, business owned, government owned vehicles (sold in North America) and in instances where a power of attorney has been granted in the case of collision repair or estate management of a deceased owner.