Document ID: chunk:federal_register_of_legislation:F2018L01517:front:0:p4
Version: federal_register_of_legislation:F2018L01517
Segment Type: other
Provision Reference: 
Character Range: 10417–13258

upgrade of service description for the purposes of retreading in
       accordance with Regulation No. 109........................................ 50

1. Scope
This Regulation covers new pneumatic tyres * designed primarily for vehicles of categories M2, M3, N, O3 and O4.[1] [2] However, it does not apply to tyre types identified by speed category symbols corresponding to speeds below eighty (80) km/h.
2. Definitions
For the purposes of this Regulation:
2.1. "Type of tyre" means tyres which do not differ in such essential characteristics as:
(a) The manufacturer's name;
(b) Tyre-size designation;
(c) Category of use (normal tyre, snow tyre, special use tyre);
(d) Structure (diagonal (bias-ply); radial);
(e) Speed category symbol;
(f) Load-capacity indexes;
(g) Tyre Cross-section;
2.2. "Manufacturer" means the person or body who is responsible to the Type Approval Authority (TAA) for all aspects of the type-approval and for ensuring the conformity of production.
2.3. "Brand name/trademark" means the identification of the brand or trademark as defined by the tyre manufacturer and marked on the sidewall(s) of the tyre. The brand name/trademark may be the same as that of the manufacturer.
2.4. "Trade description/commercial name" means an identification of a range of tyres as given by the tyre manufacturer. It may coincide with the brand name/trademark.
2.5. Category of use:
2.5.1. "Normal tyre" means a tyre intended for normal, on-road use;
2.5.2. "Snow tyre" means a tyre whose tread pattern, tread compound or structure is primarily designed to achieve in snow conditions a performance better than that of a normal tyre with regard to its ability to initiate or maintain vehicle motion;
2.5.3. "Special use tyre" means a tyre intended for mixed use both on- and off-road or for other special duty. These tyres are primarily designed to initiate and maintain the vehicle in motion in off-road conditions;
2.5.3.1. "Professional off-road tyre" is a special use tyre primarily used for service in severe off-road conditions;
2.6. "Structure" of a tyre means the technical characteristics of the tyre's carcass.  A distinction is made between the following structures in particular:
2.6.1. "Diagonal" or "bias-ply" describes a  tyre structure in which the ply cords extend to the beads and are laid at alternate angles substantially less than 90° to the centreline of the tread;
2.6.2. "Radial" describes a tyre structure in which the ply cords extend to the beads and are laid substantially at 90° to the centreline of the tread, the carcass being stabilized by an essentially inextensible circumferential belt;
2.7. "Bead" means the part of a tyre which is of such shape and structure as to fit the rim and to hold the tyre on it[3];
2.8. "Cord" means the strands forming the fabric of the plies in the tyre3;
2.9. "Ply"