CERN is preparing the Large Hadron Collider for a restart in 2009. The first beam of the year is likely to be injected in mid-November. This will be followed by a short period of collisions at the injection energy of 450GeV per beam and a ramp in energy to 3.5TeV per beam. Following this, LHC physics will begin with collisions at this energy. The time from first injection to first high-energy collisions will be at least four weeks. However, the complexity of scheduling coupled with inevitable glitches in a machine of this complexity could lead to this process taking longer. The first high energy collisions will most likely occur at a date after mid-December 2009.

　　This is how CERN will communicate the major milestones on the way to first physics:

　　1) Start-up of the accelerator in November:

　　 We will issue a press release and provide a dedicated webpage. Latest information, photos and footage will be available in the lead up to and throughout the day at http://press.web.cern.ch/press/lhc-first-physics/, so watch this space! We will also issue press releases for low energy collisions and breaking the world record beam energy, currently 1TeV.

　　No press will be invited for these events.

　　2) MEDIA INVITATION: LHC first physics at the energy of 3.5TeV per beam:

　　Media are welcome to be present at CERN for the first high energy collisions. Bringing beams into collision is a complex process, and it is impossible for CERN to announce a precise date for this to happen. We will be able to announce the period when we will attempt to make the first collisions with approximately two weeks notice but we will only be able to confirm the date ONE OR TWO DAYS before the first attempt at collisions. Furthermore, media wishing to cover this event must be prepared to spend a period of possibly several days at CERN.

　　We are running an early accreditation to assist our planning for this historic event. We hope to host media in the control centres of the LHC experiments, which will be the heart of the action but where space is very limited. Media wishing to be present at CERN are invited to fill out their accreditation details at http://press.web.cern.ch/press/lhc-first-physics/accreditation/ before 23 October 2009. WE CANNOT GUARANTEE ACCREDITATION AFTER THIS DATE.

　　Some of the experiments have data centres away from CERN, which may also be able to host media. Details of these will be posted on the website as soon as they become available.

　　The webpage http://press.web.cern.ch/press/lhc-first-physics/ will be regularly updated with information about the event, including information for broadcasters concerning distribution of images from the events.

Source: Cern Website