Status and plans for commissioning of the CMS experiment at the LHC, with particular focus 
on the installation, calibration and alignment procedures of the tracker, calorimeter and 
muon systems will be discussed. Results and lessons from the recent 'Magnet test and cosmic 
challenge' will be highlighted. The roadmap for physics commissioning (trigger tables, HLT 
selection, streaming) and prospects for early physics with CMS will be presented.