Electricians on FABO - I want to add a 60Amp sub panel

How 'bout the NEC of 2011?

http://archive.org/details/gov.law.nfpa.nec.2011

[ame]http://archive.org/download/gov.law.nfpa.nec.2011/nfpa.nec.2011.pdf[/ame]

Article 250, grounding, starts about page no 106

Article 408, switchboards and panelboards, page 281