Changes to Parliamentary Bills are made in the form of an Additional Provision. This process for promoting an Additional provision is the same as for the High Speed Rail (London - West Midlands) Bill currently progressing through Parliament.
An Additional Provision consists of a document which outlines the amendments being made to parts of the Bill itself, supplementary environmental information, and either replacement or additional plans and sections.
The amendments to the High Speed Rail (London - West Midlands) Bill and further details regarding Additional Provision (September 2014) can be found on the UK Parliament website at:
Plans, Sections and Book of Reference
Estimate of expense
Supplementary environmental information
Deposit locations of documents
Obtaining copies of documents
Published 9 September 2014