North Dakota must contain the word "company", "corporation", "incorporated", "limited", or an abbreviation of one or more of these words; may not contain the words "limited liability company", "limited partnership", "limited liability partnership", "limited liability limited partnership", or any abbreviation of these words. North Dakota century Code 10-19.1-13
Banking Since it's required to keep your business finances separate from your personal finances, you'll need a business checking account. Banks usually charge a number of different fees and monthly expenses for these types of accounts. Also, If a check is made out to your LLC, then it is required to be deposited into a business bank account and cannot just be cashed. And some banks might charge extra for this type of deposit.
After you register your business, you may need to get an employer identification number (EIN) from the IRS. While this is not required for sole proprietorships with no employees, you may want to apply for one anyway to keep your personal and business taxes separate, or simply to save yourself the trouble later if you decide to hire someone else. The IRS has provided a checklist to determine whether you will require an EIN to run your business. If you do need an EIN, you can register online for free.