FMVSS 212 requires retention of at least 50% or 75% of windshield periphery (depending whether equipped or not with FMVSS 208 passive restraints) when a vehicle impacts a frontal crash barrier perpendicular to the direction of travel at a speed up to 48 kmph (30 mph).

FMVSS 212 application depends on type of glazing, whether non-polycarbonate such as glass, but does not apply to forward control vehicles, walk-in van-type vehicles, or to open-body type vehicles with fold-down or removable windshields.

FMVSS 214 requires when the seats are removed from the vehicle: the initial door crush resistance must be more than 10,000 N (2,250 lbf), the intermediate door crush resistance must be more than 15,569 N (3,500 lbf), and the peak crush resistance must be more than two times Unloaded Vehicle Weight (UVW) (specifically, >2 g) or 31,138 N (7,000 lbf), whichever is less.

FMVSS 214 also requires when the seats are installed to the vehicle: the initial door crush resistance must be more than 10,000 N (2,250 lbf), the intermediate door crush resistance must be more than 19,460 N (4,375 lbf), and the peak crush resistance must be more than two times UVW (specifically, >2 g) or 53,378 N (12,000 lbf), whichever is less.

Test types are quasi-static door crush resistance, and dynamic: crash-test and sled-test. Barriers types are Fixed, Rigid Pole (FRP) and Moving Deformable (MDB). During dynamic crash testing, where Anthropomophic Test Devices (ATD) (50%-ile male, and 5%-ile female) seated in a vehicle must not exceed specified values for peak lateral acceleration of the pelvis and Thoracic Trauma Index (TTI(d)), when the vehicle is impacted at 53 kmph (33.5 mph) by an MDB, and again when impacted at 32 kmph (20 mph) into an FRP.

FMVSS 214 requires doors to remain attached, hinged, and latched during all dynamic crash testing. However, FMVSS 214 does not apply to vehicles with no doors or with doors that are designed to be easily attached or removed, or any side door that is designed to be easily attached or removed.

FMVSS 216a requires a vehicle’s roof must survive and not deflect more than 127 mm (5 inches) when crushed by three times Unloaded Vehicle Weight (UVW) (specifically, 3 g), and during deflection no load greater than 222 N (50 lbf) may be applied to the head position of a 50%-ile male Anthropomorphic Test Device (ATD).

FMVSS 219 requires no part of a vehicle outside the occupant compartment, except windshield molding and other components designed to be normally in contact with the windshield, to penetrate the protected zone template to a depth of more than 6 mm (0.24 inch), and no such part of a vehicle shall penetrate the inner surface of that portion of the windshield, within the Daylight Opening (DLO), below the protected zone, when the vehicle impacts a frontal crash barrier perpendicular to the direction of travel at a speed up to 48 kmph (30 mph).

FMVSS 219 application depends on type of glazing, whether non-polycarbonate such as glass, but does not apply to forward control vehicles, walk-in van-type vehicles, or to open-body type vehicles with fold-down or removable windshields.

FMVSS 226 requires the most outboard surface of an ATD-like ejection headform must not displace more than 100 millimeters beyond the zero displacement plane, when the Ejection Propulsion Mechanism (EPM) propels the Ejection Impactor (EI) into the impact target locations of each side daylight opening of a vehicle (see FMVSS 226(S3) Definitions).

FMVSS 226 applies to most vehicles, but does not apply to walk-in vans, modified roof vehicles, convertibles, or vehicles with no doors or with doors that are designed to be easily attached or removed so the vehicle can be operated without doors.