If you are with a business that sells retail or sells to other businesses, you can obtain a card with Smart and Final to prevent paying sales tax more than once. You'd need to have your seller's permit and sales certificate from the state tax agency.
No is for everyone just if you shop for business take your business license for tax exemptions.
No u dont need a card
No
Not for many years.
No you dont
You do not need a membership card.
Thanks! Your answer is awaiting moderation.