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The Federal Taxpayer Registry (Spanish: Registro Federal de Contribuyentes, RFC), also known as RFC number, is a tax identification number required by any physical or natural person or moral or juridical person (legal entity) in Mexico to carry out any lawful economic activity for which they are obliged to pay taxes, with some exceptions.
CURP number is now used in all Civil Registry individual records (birth and death certificates) and certified copies thereof. Although primarily intended to substitute for a series of registration numbers (IMSS, RFC, IFE), CURP has failed to replace any of these, which continue to use their own code-generation protocols.
RFC Boxes [1-8] are the amino acid sequences found in human replication factor C. RFC 1 is the largest RFC subunit, with 8RFC Boxes. Other RFC subunits also have 7 RFC boxes. RFC box 1 has a 90 amino acid-long region, while RFC box 2 is a highly conserved subunit. RFC box 3 includes a phosphate-binding loop.
The Internationalized Resource Identifier (IRI) is an internet protocol standard which builds on the Uniform Resource Identifier (URI) protocol by greatly expanding the set of permitted characters.
Link Conexión Aérea, S.A. de C.V., operating as TAR Aerolíneas, is a Mexican regional airline based in the city of Querétaro, the capital city of the homonymous state.