Under the Freedom of Information Act I request the following documents entitled: 1. "iBus Data Cleansing for QSIs" 2. "iBus Data Mitigation for QSIs"

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Our ref: FOI-1792-2021/GH

Thank you for your request received by Transport for London (TfL) on 6 December 2020 asking for QSI Documents.

Your request has been considered under the requirements of the Freedom of Information Act 2000 and our information access policy. I can confirm that we do hold the information you require.

Please find attached the QSI documents as requested.

If this is not the information you are looking for, or if you are unable to access it for some reason, please do not hesitate to contact me.

If you are considering submitting a further FOI request please think carefully about whether the request is essential at this current time, as answering FOI requests will require the use of limited resources and the attention of staff who could be supporting other essential activity. Where requests are made, please note that our response time may be impacted by the current situation.

If you are not satisfied with this response please see the attached information sheet for details of your right to appeal.

Yours sincerely

Graham Hurt

FOI Case Officer

FOI Case Management Team

General Counsel

Transport for London

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