Document ID: chunk:federal_register_of_legislation:F2019L00026:reg:1:p10
Version: federal_register_of_legislation:F2019L00026
Segment Type: reg
Provision Reference: reg 1 (pt 10/15)
Character Range: 220060–223416

such a case corresponding information shall be included in Table 2 and/or 3 of Appendix 3 of this annex.
              4. ISOFIX child restraint system size classes and fixtures
               A – ISO/F3: Full-Height Forward Facing toddler CRS
               B – ISO/F2: Reduced-Height Forward Facing toddler CRS
               B1 – ISO/F2X: Reduced-Height Forward Facing toddler CRS
               C – ISO/R3: Full-Size Rearward Facing toddler CRS
               D – ISO/R2: Reduced-Size Rearward Facing toddler CRS
               E – ISO/R1: Rearward Facing infant CRS
               F – ISO/L1: Left Lateral Facing position CRS (carry-cot)
               G – ISO/L2: Right Lateral Facing position CRS (carry-cot)

               The fixtures below shall be constructed with a mass between 5 and 15 kg and shall be of suitable durability and stiffness to satisfy the functional requirements.
Mass group        ISOFIX size class  Fixture (CRF)
0 – up to 10 kg   F                  ISO/L1
G                 ISO/L2
E                 ISO/R1
0+ - up to 13 kg  C                  ISO/R3
D                 ISO/R2
E                 ISO/R1
I - 9 to 18 kg    A                  ISO/F3
B                 ISO/F2
B1                ISO/ F2X
C                 ISO/R3
D                 ISO/R2

              4.1. Full-height forward-facing toddler child restraint systems envelope

Figure 1

ISO/F3 envelope dimensions for a full-height forward-facing toddler CRS

(height 720 mm) ISOFIX SIZE CLASS A

              Key
              1 Limits in the forward and upwards directions
         2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.
              3 N/A
              4 Further specifications of the connector area are given in Regulation No. 44

              4.2. Reduced-height forward-facing toddler child restraint systems envelope

Figure 2

ISO/F2 envelope dimensions for a reduced-height forward-facing toddler

CRS, (height 650 mm) – ISOFIX SIZE CLASS B

              Key
              1 Limits in the forward and upwards directions
         2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.
              3 N/A
              4 Further specifications of the connector area are given in Regulation No. 44
              5 Attachment point for the top tether strap.

              4.3. Reduced-height second version back shape forward-facing toddler child restraint systems envelope

Figure 3

ISO/F2X envelope dimensions for a reduced-height second version back surface shape
forward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B1

              Key
              1 Limits in the forward and upwards directions
         2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.
              3 N/A
              4 Further specifications of the connector area are given in Regulation No. 44.

              4.4. Full-size rearward facing toddler child restraint system envelope

Figure 4

ISO/R3 envelope dimensions for a full-size rearward-facing toddler
CRS ISOFIX SIZE CLASS C

              Key
              1 Limits in the rearward and upwards directions
         2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.