ISO/IEC 7810
Card sizes

Format
Dimensions
Usage
ID-1
85.60 × 53.98 mm
Most banking cards and ID cards
ID-2
105 × 74 mm
French and other ID cards; Visas
ID-3
125 × 88 mm
US government ID cards
ID-000
25 × 15 mm
SIM cards

Question: What does the ID-1 format specify?
Answer: The ID-1 format specifies a size of 85.60 × 53.98 mm.