Chief Inspector Tom Hurrell told the club's website: "Our advice to the club, based on the best information available, is to recommend that the match should be played at 12 noon.
"We believe there is a serious risk to the normal life of the city caused by this fixture. We have also agreed a series of other measures with Derby County and Stoke City."
Amongst these other measures is the condition that only those travelling from Stoke on official coaches will be allowed to attend the game, while the Rams will only admit season ticket holders and those fans with customer numbers.