---
title: "21L.B.42 Initial investigation — Annex Ib, Initial Airworthiness · Avioverse"
description: "Upon receiving an application for a type certificate under this Annex, the Agency shall verify whether the product is within the scope established in…"
url: "https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-b-procedures-for-competent-authorities/21l-b-42"
---

# 21L.B.42 Initial investigation

Annex Ib · Regulation (EU) No 748/2012 · EAR revision 27 Nov 2025

IR Implementing rule

## 21L.B.42 Initial investigation

(a) Upon receiving an application for a type certificate under this Annex, the Agency shall verify whether the product is within the scope established in point 21L.A.21 and whether the applicant is eligible in accordance with point 21L.A.22 to apply for a type certificate for the product.

(b) When the conditions of point (a) are not fulfilled, the Agency shall reject the application.

IR · 21L.B.42 — Regulation (EU) No 748/2012 · Regulation (EU) 2022/1358 · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025

[All rules in SECTION B - PROCEDURES FOR COMPETENT AUTHORITIES](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-b-procedures-for-competent-authorities)

Consolidated from the EASA Easy Access Rules (revision 27 Nov 2025, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.