The complainant requested information from the London Borough of Hammersmith and Fulham (“the Council”) relating to the proposed implementation of a cycleway. The Commissioner’s decision is that the Council is entitled to rely on regulation 13(1) (personal data) of the EIR to withhold some information within the scope of the request. However, he finds that the Council is not entitled to rely on regulation 13(1) of the EIR to withhold the names and email addresses of senior Council officers and Councillors. Furthermore, the Commissioner’s decision is that the Council is entitled to rely on regulation 12(5)(f) (interests of the person who provided the information to the public authority) of the EIR to withhold some information within the scope of the request, that being information that would identify the third party individuals who provided information to the Council. However, he finds that the Council is not entitled to rely on regulation 12(5)(f) of the EIR to withhold the remainder of the information withheld by the Council under that exception. The Commissioner also finds that the Council has breached regulation 5(1) (duty to make environmental information available) of the EIR by failing to disclose some information within the scope of the request which it is not withholding under an exception. The Commissioner requires the Council to take the following steps to ensure compliance with the legislation. The Council must disclose the names and email addresses of senior Council officers and Councillors, which it withheld under regulation 13(1) of the EIR, to the complainant. In respect of the information which the Commissioner finds does not engage regulation 12(5)(f) of the EIR, the Council must disclose that information to the complainant, making appropriate personal data redactions as described in paragraph 41 of this notice. In respect of the information which the Commissioner finds to fall within the scope of the request but that the Council has not withheld under an exception, the Council must disclose that information to the complainant. However, it should make appropriate personal data redactions as described at paragraph 54 of this notice. The Council must take these steps within 30 calendar days of the date of this decision notice. Failure to comply may result in the Commissioner making written certification of this fact to the High Court pursuant to section 54 of the Act and may be dealt with as a contempt of court.