The Aeronautical Charts & Data Section (AC&D) is part of the Directorate of Airspace Policy (DAP). It formulates policy for aeronautical charts and aeronautical co-ordinates, and controls the scheduled production of maps and charts for both the Visual Flight Rules (VFR) series, and the Aeronautical Information Publication (AIP).
From here the following resources are available relating to VFR charts:
Amendments (with implementation dates) to each of the current charts; VFR Guide; VFR Guide Supplements; Notification of New Charts and Publication Dates; VRP Co-ordinates; General Information.
The following resources are available relating to AIP charts:
AIP Provisional Charts (temporarily replacing published versions); Aerodrome Obstacle Chart - (Type A); Precision Approach Terrain Charts (PATC); (Link to) Form 933 (AIP amendment request).
All the above are accessible via the left hand menu.