(21)Certain fees, commissions or non-monetary benefits which may be paid to or by a management company should not be permitted as they could have an impact on the observance of the requirements laid down in 2009/65/EC Directive that the management company should act honestly, fairly and professionally in accordance with the best interests of the UCITS. Therefore, it is necessary to set out clear rules specifying where the payments of fees, commissions and non-monetary benefits are not considered a violation of those principles.