GS1 BARCODE SYMBOLOGIES provide standard machine-readable encoding of GS1 identification keys + AIs. (1) EAN/UPC FAMILY (1D linear barcodes, point-of-sale standard since 1973): EAN-13 (13 digits, global retail + GTIN-13); UPC-A (12 digits, US/Canada retail + GTIN-12); EAN-8 (8 digits, small items + GTIN-8); UPC-E (compressed 8 digits, US small items); ~6 BILLION scanned daily globally at point-of-sale. (2) GS1-128 (Code 128 based, supports AIs + concatenation): used for cartons + cases + pallets + logistics; supports up to 48 characters + multiple AIs. (3) GS1 DATABAR (formerly RSS - Reduced Space Symbology, 1D): compact + supports AIs + variable + fresh foods + small items; multiple sub-types (Omnidirectional + Stacked + Expanded). (4) GS1 DATAMATRIX (2D matrix, ISO/IEC 16022): high data density + supports AIs + GS1 standard 2D format; used for healthcare + pharma + small items + serialization; required by EU FMD + DSCSA + MDR/IVDR. (5) GS1 QR CODE (2D matrix, ISO/IEC 18004): consumer-facing 2D + URL-resolvable via GS1 Digital Link + visible + scannable by smartphone; widely used in EU DPP + consumer engagement + connected packaging. (6) GS1 COMPOSITE (1D + 2D combination): 1D for point-of-sale + 2D for additional data; used in healthcare + small items. (7) GS1 CODE 39 (legacy 1D): older systems + replaced by Code 128. EU 2D CODE MANDATE + SUNRISE 2027: EU is transitioning from 1D barcodes to 2D codes (DataMatrix + QR with Digital Link) for consumer packaged goods + healthcare; SUNRISE 2027 = global point-of-sale readiness target for 2D barcode acceptance by retailers + check-out scanners; current status: many major retailers (Tesco + Walmart + Carrefour + others) testing/deploying; full readiness anticipated 2027-2028; EU Digital Product Passport (DPP) per ESPR Regulation (EU) 2024/1781 + sectoral delegated acts 2026+ requires Digital Link + 2D codes for product information.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.