Required airfield landing length may vary from country to country, but here in the United Stated and Europe airport follow AC 150/5325-4B Runway Length Requirements For Airport Design available at
http://www.faa.gov web site under Advisory Circulars (ACs). Or type in the following and it will take you right to the AC that cover your subject.
http://www.airweb.faa.gov/Regulatory...o rt%20design
The AC is in a PDF file if you cannot find it send me a private e-mail and I will forward a copy to you my e-mail.
The regulations do not specifically require that the runway length be equal to or greater than the accelerate-stop distance. Most AFM/POHs publish accelerate-stop distances only as an advisory. It becomes a limitation only when published in the limitations section of the AFM/POH. Experienced multiengine pilots, however, recognize the safety margin of runway lengths in excess of the bare minimum required for normal takeoff. They will insist on runway lengths of at least accelerate-stop distance as a matter of safety and good operating practice.
Denny of Oakland