Editing Radio Data System (section)

==== Program identification code (PI code) ====
This allows for quick identification of radio program type, based on country, coverage area, and program reference number. While the country code is specified by the standard, bit 11 to bit 0 is specified by each country local authorities.
{| class="wikitable"
|-
|PI Code
| colspan="4" |Nibble 0
| colspan="4" |Nibble 1
| colspan="4" |Nibble 2
| colspan="4" |Nibble 3
|-
|Meaning
| colspan="4" |Country Code
| colspan="4" |Program Area Coverage
| colspan="8" |Program Reference Number
|-
|Bit Position
|b15
|
|
|b12
|b11
|
|
|b8
|b7
|
|
|b4
|b3
|
|
|b0
|}

Country codes are re-used, but only in geographically distant regions beyond FM broadcast range from each other. For example, country code F is assigned to [[France]], [[Norway]], [[Belarus]] and [[Egypt]].{{r|EN50067|p=71}} Neighbouring countries never have the same country code which means it is not necessary for PI codes to be coordinated with adjacent countries.