legal analysis: opening a nail salon requires a business license. The registered items of the business license include name, address, person in charge, amount of funds, economic composition, business scope, mode of operation, number of employees, term of operation, etc. The business license is divided into original and duplicate, both of which have the same legal effect. The original shall be placed in a conspicuous position in the company's domicile or business premises, and the business license shall not be forged, altered, leased, lent or transferred. Without a business license, industrial and commercial enterprises or individual operators are not allowed to start business, and they are not allowed to carve official seals, sign contracts, register trademarks or advertise, and banks are not allowed to open accounts.

legal basis: article 14 of the regulations of the people's Republic of China on the administration of the registration of enterprise legal persons shall apply to the registration authority within 3 days after the approval of the competent department or the examination and approval authority; An enterprise without a competent department or examination and approval authority applying for business registration shall be examined by the registration authority. The registration authority shall, within 3 days after accepting the application, make a decision on whether to approve or disapprove the registration.