Licenses & Permits
Depending on your particular business there may be licenses and permits that you will need from your Federal, State or local government.
There are too many requirements to list here. Consider going to your local council and inquiring about local government permits etc for your business. The same with State and Federal jurisdictions. If your in any doubt about your requirements check with a solicitor.
Business numbers are required in some countries they can have tax implications. Inquire locally to ascertain if your business or company will require a business number. Additionally you may require a Tax Number check with the Tax Dept. in your city.