49 CFR 563.7 - Data elements.

Regulations last checked for updates: May 23, 2025

Title 49 - Transportation last revised: May 21, 2025

View all text of Part 563 [§ 563.1 - § 563.12]

§ 563.7 - Data elements.

(a) Data elements required for all vehicles. Each vehicle equipped with an EDR must record all of the data elements listed in table I to § 563.7(a), during the interval/time and at the sample rate specified in that table.

Table I to § 563.7(a)—Data Elements Required for All Vehicles Equipped with an EDR

Data element	Recording interval/time ¹ (relative to time zero)	Data sample rate (samples per second)
Delta-V, longitudinal	0 to 250 ms or 0 to End of Event Time plus 30 ms, whichever is shorter	100
Maximum delta-V, longitudinal	0-300 ms or 0 to End of Event Time plus 30 ms, whichever is shorter	N/A
Time, maximum delta-V	0-300 ms or 0 to End of Event Time plus 30 ms, whichever is shorter	N/A
Speed, vehicle indicated	−20.0 to 0 sec ⁴	⁴ 10
Engine throttle, % full (or accelerator pedal, % full)	−20.0 to 0 sec ⁴	⁴ 10
Service brake, on/off	−20.0 to 0 sec ⁴	⁴ 10
Ignition cycle, crash	−1.0 sec	N/A
Ignition cycle, download	At time of download ³	N/A
Safety belt status, driver	−1.0 sec	N/A
Frontal air bag warning lamp, on/off ²	−1.0 sec	N/A
Frontal air bag deployment, time to deploy, in the case of a single stage air bag, or time to first stage deployment, in the case of a multi-stage air bag, driver	Event	N/A
Frontal air bag deployment, time to deploy, in the case of a single stage air bag, or time to first stage deployment, in the case of a multi-stage air bag, right front passenger	Event	N/A
Multi-event, number of event	Event	N/A
Time from event 1 to 2	As needed	N/A
Complete file recorded (yes, no)	Following other data	N/A

¹ Pre-crash data and crash data are asynchronous. The sample time accuracy requirement for pre-crash time is −0.1 to 1.0 sec (e.g., T = −1 would need to occur between −1.1 and 0 seconds.)

² The frontal air bag warning lamp is the readiness indicator specified in S4.5.2 of FMVSS No. 208, and may also illuminate to indicate a malfunction in another part of the deployable restraint system.

³ The ignition cycle at the time of download is not required to be recorded at the time of the crash, but shall be reported during the download process.

⁴ For vehicles manufactured before September 1, 2027, the required recording interval is −5.0 to 0 sec relative to time zero and the required data sample rate is 2 samples per second. For vehicles manufactured before September 1, 2029 by small-volume manufacturers and limited-line manufacturers, the required recording interval is −5.0 to 0 sec relative to time zero and the required data sample rate is 2 samples per second. For vehicles manufactured before September 1, 2030 by manufacturers producing altered vehicles or vehicles in two or more stages, the required recording interval is −5.0 to 0 sec relative to time zero and the required data sample rate is 2 samples per second.

(b) Data elements required for vehicles under specified conditions. Each vehicle equipped with an EDR must record each of the data elements listed in column 1 of table II to § 563.7(b) for which the vehicle meets the condition specified in column 2 of that table, during the interval/time and at the sample rate specified in that table.

Table II to § 563.7(b)—Data Elements Required for Vehicles Under Specified Minimum Conditions

Data element name	Condition for requirement	Recording interval/time ¹ (relative to time zero)	Data sample rate (per second)
Lateral acceleration	If recorded ²	N/A	N/A
Longitudinal acceleration	If recorded	N/A	N/A
Normal acceleration	If recorded	N/A	N/A
Delta-V, lateral	If recorded	0-250 ms or 0 to End of Event Time plus 30 ms, whichever is shorter	100
Maximum delta-V, lateral	If recorded	0-300 ms or 0 to End of Event Time plus 30 ms, whichever is shorter	N/A
Time maximum delta-V, lateral	If recorded	0-300 ms or 0 to End of Event Time plus 30 ms, whichever is shorter	N/A
Time for maximum delta-V, resultant	If recorded	0-300 ms or 0 to End of Event Time plus 30 ms, whichever is shorter	N/A
Engine rpm	If recorded	−20.0 to 0 sec ⁵	⁵ 10
Vehicle roll angle	If recorded	−1.0 up to 5.0 sec ³	10
ABS activity (engaged, non-engaged)	If recorded	−20.0 to 0 sec ⁵	⁵ 10
Stability control (on, off, or engaged)	If recorded	−20.0 to 0 sec ⁵	⁵ 10
Steering input	If recorded	−20.0 to 0 sec ⁵	⁵ 10
Safety belt status, right front passenger (buckled, not buckled)	If recorded	−1.0 sec	N/A
Frontal air bag suppression switch status, right front passenger (on, off, or auto)	If recorded	−1.0 sec	N/A
Frontal air bag deployment, time to nth stage, driver ⁴	If equipped with a driver's frontal air bag with a multi-stage inflator	Event	N/A
Frontal air bag deployment, time to nth stage, right front passenger ⁴	If equipped with a right front passenger's frontal air bag with a multi-stage inflator	Event	N/A
Frontal air bag deployment, nth stage disposal, driver, Y/N (whether the nth stage deployment was for occupant restraint or propellant disposal purposes)	If recorded	Event	N/A
Frontal air bag deployment, nth stage disposal, right front passenger, Y/N (whether the nth stage deployment was for occupant restraint or propellant disposal purposes)	If recorded	Event	N/A
Side air bag deployment, time to deploy, driver	If recorded	Event	N/A
Side air bag deployment, time to deploy, right front passenger	If recorded	Event	N/A
Side curtain/tube air bag deployment, time to deploy, driver side	If recorded	Event	N/A
Side curtain/tube air bag deployment, time to deploy, right side	If recorded	Event	N/A
Pretensioner deployment, time to fire, driver	If recorded	Event	N/A
Pretensioner deployment, time to fire, right front passenger	If recorded	Event	N/A
Seat track position switch, foremost, status, driver	If recorded	−1.0 sec	N/A
Seat track position switch, foremost, status, right front passenger	If recorded	−1.0 sec	N/A
Occupant size classification, driver	If recorded	−1.0 sec	N/A
Occupant size classification, right front passenger	If recorded	−1.0 sec	N/A
Occupant position classification, driver	If recorded	−1.0 sec	N/A
Occupant position classification, right front passenger	If recorded	−1.0 sec	N/A

¹ Pre-crash data and crash data are asynchronous. The sample time accuracy requirement for pre-crash time is −0.1 to 1.0 sec (e.g., T = −1 would need to occur between −1.1 and 0 seconds.)

² “If recorded” means if the data is recorded in non-volatile memory for the purpose of subsequent downloading.

³ “Vehicle roll angle” may be recorded in any time duration; −1.0 sec to 5.0 sec is suggested.

⁴ List this element n−1 times, once for each stage of a multi-stage air bag system.

⁵ For vehicles manufactured before September 1, 2027, the required recording interval is −5.0 to 0 sec relative to time zero and the required data sample rate is 2 samples per second. For vehicles manufactured before September 1, 2029 by small-volume manufacturers and limited-line manufacturers, the required recording interval is −5.0 to 0 sec relative to time zero and the required data sample rate is 2 samples per second. For vehicles manufactured before September 1, 2030 by manufacturers producing altered vehicles or vehicles in two or more stages, the required recording interval is −5.0 to 0 sec relative to time zero and the required data sample rate is 2 samples per second.

[89 FR 102832, Dec. 18, 2024]

authority: 49 U.S.C. 322,30101,30111,30115,30117,30166,30168; delegation of authority at 49 CFR 1.95

source: 71 FR 51043, Aug. 28, 2006, unless otherwise noted.

cite as: 49 CFR 563.7