# OB-IF-003 — Recognised communication standards

> The dedicated interface uses communication standards issued by European or international standardisation bodies, including CEN and ISO, or other relevant, widely recognised standards offering equivalent security.

- Article: PSR 35(3)
- Who is bound: ASPSP
- Who it is for: API, Compliance
- Application: 21 months after entry into force, the general application date (Article 112).
- Level 2: RTS under Article PSR 89(1)(f), draft due at T + 12 months.
- Origin: RTS 2018/389, Art. 30(3)

Provisional numbering of the April 2026 compromise (Council doc. 8221/26). The final numbering will be added when the Official Journal publishes the text, without changing the id.

## STET 1.6.3: Covered

STET reuses ISO 20022 data elements but is issued neither by CEN nor by ISO. It is the clause on other widely recognised standards that covers it.

- <https://openfinanceguide.com/en/stet/1.6.3/framework/3-prerequisites-and-technical-details>

## Sources

- [Council doc. 8221/26, page 239](https://data.consilium.europa.eu/doc/document/ST-8221-2026-INIT/en/pdf#page=239)

Checked on 2026-10-04. https://openfinanceguide.com/en/dsp3/obligations/ob-if-003