**Target:** Proposal for a regulation — Recital 66

## Text proposed by the Commission

(66) In line with the commonly established notion of substantial modification for products regulated by Union harmonisation legislation, it is appropriate that an AI system undergoes a new conformity assessment whenever a change occurs which may affect the compliance of the system with this Regulation or when the intended purpose of the system changes. In addition, as regards AI systems which continue to ‘learn’ after being placed on the market or put into service (i.e. they automatically adapt how functions are carried out), it is necessary to provide rules establishing that changes to the algorithm and its performance that have been pre-determined by the provider and assessed at the moment of the conformity assessment should not constitute a substantial modification.

(66)

(66)

## Amendment of the European Parliament

(66) In line with the commonly established notion of substantial modification for products regulated by Union harmonisation legislation, it is appropriate that an high-risk AI system undergoes a new conformity assessment whenever an unplanned change occurs which goes beyond controlled or predetermined changes by the provider including continuous learning and which may create a new unacceptable risk and significantly affect the compliance of the high-risk AI system with this Regulation or when the intended purpose of the system changes. In addition, as regards AI systems which continue to ‘learn’ after being placed on the market or put into service (i.e. they automatically adapt how functions are carried out), it is necessary to provide rules establishing that changes to the algorithm and its performance that have been pre-determined by the provider and assessed at the moment of the conformity assessment should not constitute a substantial modification. The same should apply to updates of the AI system for security reasons in general and to protect against evolving threats of manipulation of the system, provided that they do not amount to a substantial modification

In line with the commonly established notion of substantial modification for products regulated by Union harmonisation legislation, it is appropriate that an AI system undergoes a new conformity assessment whenever a change occurs which may affect the compliance of the system with this Regulation or when the intended purpose of the system changes. In addition, as regards AI systems which continue to ‘learn’ after being placed on the market or put into service (i.e. they automatically adapt how functions are carried out), it is necessary to provide rules establishing that changes to the algorithm and its performance that have been pre-determined by the provider and assessed at the moment of the conformity assessment should not constitute a substantial modification.

In line with the commonly established notion of substantial modification for products regulated by Union harmonisation legislation, it is appropriate that an high-risk AI system undergoes a new conformity assessment whenever an unplanned change occurs which goes beyond controlled or predetermined changes by the provider including continuous learning and which may create a new unacceptable risk and significantly affect the compliance of the high-risk AI system with this Regulation or when the intended purpose of the system changes. In addition, as regards AI systems which continue to ‘learn’ after being placed on the market or put into service (i.e. they automatically adapt how functions are carried out), it is necessary to provide rules establishing that changes to the algorithm and its performance that have been pre-determined by the provider and assessed at the moment of the conformity assessment should not constitute a substantial modification. The same should apply to updates of the AI system for security reasons in general and to protect against evolving threats of manipulation of the system, provided that they do not amount to a substantial modification