Document preparation is the most underestimated part of NG-eCall certification. Project schedules that look generous on paper get derailed because the paperwork is not ready, forcing test slots to be pushed back. If you are planning an NG-eCall certification project, treat document preparation as a project critical path, not an afterthought.
1. Product Technical Specification
The spec sheet must clearly state the communication module model, IMS protocol stack version, positioning module model, backup power capacity and cell model, and crash trigger sensor placement. Two mandatory hard-threshold values must be explicitly written into the spec.
EN 17184:2024 requires IMS call setup latency of 3 seconds or less, down from 10 seconds for legacy CS-eCall. The shared backup power supply must sustain the full 66-minute cycle: 5 minutes of call time, 56 minutes of standby, then another 5 minutes of call time. These are mandatory bench test items. If the spec sheet does not state these values clearly, the test plan review will be sent back.
2. Circuit Diagrams
Provide connection diagrams showing the communication module, positioning module, backup power, crash trigger unit, and the vehicle CAN bus. NG-eCall has extensive signal interactions with other vehicle systems. The reviewer needs to verify the emergency call trigger signal path, vehicle status data acquisition route, and voice channel switching logic. All of this must be visible in the circuit diagrams.
3. User Manual
The emergency call section of the user manual must describe how users manually trigger the system, the conditions for automatic triggering, what occupants should do during an emergency call, and data privacy notifications. This content must align with the GDPR compliance documentation.
4. MSD V3 Video Fields
MSD V3 only reserves video transmission fields. EU regulations do not mandate onboard cameras. No need to prepare video transmission test plans or privacy documentation for certification purposes.
5. Dual-Mode Fallback Logic
The fallback switching logic must be documented in both the technical specification and the test plan. NG-eCall prioritizes IMS VoIP packet domain, falling back to CS circuit domain only when the local PSAP does not support VoIP. The reviewer checks fallback trigger conditions and switching timing. Missing or unclear descriptions will require supplementation.
Test Documentation
The test plan must be finalized before sample submission. NG-eCall has more test items than legacy CS-eCall. IMS call setup latency, MSD V3 full-field verification, and backup power full 66-minute cycle testing all need to be written into the plan.
The 2025 amendment (EU) 2025/1871 enforces three new requirements for projects submitted after January 1, 2026. MSD V3 test reports must be issued by a CMA-accredited laboratory. Shared power supply endurance requires complete test records. GDPR documents must be reviewed and signed by a Data Protection Officer. Missing any of these three means full rework.
The laboratory issues the test report, but the company must prepare the opening sections, including product description, model variant explanation, and series coverage relationships. Multiple vehicle models or module variants from the same company can be covered under one certificate if the differences are proven not to affect NG-eCall functionality.
Quality Management System Documents
NG-eCall is a mandatory certification. The company must operate an ISO 9001 or IATF 16949 quality management system. The reviewer requires the system certificate and conducts on-site checks during annual CoP audits.
System documentation goes beyond holding a certificate. Auditors examine the design and development control procedure to verify that NG-eCall-related design changes went through proper review, verification, and validation. They check supplier management procedures for communication module and T-Box vendor qualification. They review production process control procedures for work instructions at critical process steps.
UN R144 and NG-eCall can be tested together with shared baseline data, but the company must prepare separate test plans and independent GDPR/DPIA documents for each.
GDPR Privacy Compliance Documents
Data Protection Impact Assessment (DPIA)
The DPIA is the core document. It must catalog what personal data the NG-eCall system processes, the purpose of processing, the legal basis, data retention periods, and whether data is transferred outside the EU. A DPIA is not a template document. Each vehicle model's NG-eCall implementation processes data differently, so the DPIA must be written specifically for that model.
Data Encryption Scheme
Describe the encryption algorithm used for data transmission between the vehicle and PSAP, key management processes, and transmission channel protection. The EU maintains an approved encryption algorithm list. Using an algorithm outside that list means automatic rejection.
User Informed Consent Template
NG-eCall transmits vehicle location and data during emergency calls. Users must be informed of this functionality at the point of sale and provide informed consent. The consent text must be written in the language of the target sales market, not just English.
Component Certificates and Supply Chain Documentation
Whole-vehicle NG-eCall certification requires component certificates for the communication module, T-Box, and other critical parts. Certificates are valid long-term with no fixed statutory expiration. Maintaining validity requires annual CoP reports and sampling cooperation. Retesting is triggered only by major changes to hardware, communication modules, or IMS firmware.
If component certificates are held by the supplier, the OEM must obtain an authorization letter proving that the mass-produced components match the certified models. The reviewer checks procurement records and incoming inspection records to confirm that installed components match certified samples.
Parallel import vehicles without original component certificates require supplementary documentation: full component teardown test records and third-party security assessment reports.
Change Management Documentation
Replacing the communication module, T-Box, or modifying backup power hardware counts as a major change. Submit a change difference description, partial retest report, and updated full technical specification. Minor UI text adjustments or software logic changes that do not affect communication functionality require only a simplified filing statement, no retesting.
Sample Vehicle and Component Preparation
Sample vehicles must match the mass production plan exactly. Engineering prototypes will not pass. The lab verifies VIN codes and component batch numbers before testing. Mismatches invalidate the test report.
Prepare 2 to 3 sample vehicles. NG-eCall functionality must be in a demonstrable state. The reviewer conducts a functional demonstration first to confirm basic operation before formal testing begins.
One practical tip: bring spare components to the lab. If a T-Box fails during environmental testing, having a replacement on-site saves days of waiting for a new unit to be shipped. Lab time is expensive. Downtime waiting for parts is worse.
BlueAsia Testing is a Huawei HiCar authorized certification organization, recognized with the "Excellent Certification Organization" award in 2025. We help automakers and component manufacturers prepare complete NG-eCall certification document packages and coordinate with EU notified bodies.
For NG-eCall certification document consultation, contact BlueAsia Testing: 13632500972 (Benson)
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