The website of the North Carolina Dispute Resolution Commission, the state agency that regulates the practice of mediation, has a wealth of information for parties and attorneys alike.  Here are links to some of them:

The Rules Implementing Statewide Mediated Settlement Conferences in Superior Court Civil Actions (MSC Rules) (also adopted, with some modifications, by the federal courts in Western North Carolina): http://www.nccourts.org/Courts/CRS/Councils/DRC/MSC/Rules.asp

The rules in PDF format:
http://www.nccourts.org/Courts/CRS/Councils/DRC/MSC/Rules/MSC_allrules.pdf

The Standards of Professional Conduct for Mediators:
 Mediators:  http://www.nccourts.org/Courts/CRS/Councils/DRC/Documents/StandardsConduct.pdf

General information for parties without attorneys:
http://www.nccourts.org/Courts/CRS/Councils/DRC/NoAttorney/Default.asp

A handy guide for parties without attorneys:
http://www.nccourts.org/Courts/CRS/Councils/DRC/Documents/SCMediationNoAttorney.pdf

A short brochure on mediation produced by the Dispute Resolution Commission:
 http://www.nccourts.org/Courts/CRS/Councils/DRC/Documents/MSCBrochure.pdf

A list of local rules by county:
http://www.nccourts.org/Courts/CRS/Policies/LocalRules/Default.asp

The Local Rules of the United States District Court for the Western District of North Carolina (Rules 16.2 and 16.3 govern mediation):
http://www.ncwd.uscourts.gov/sites/default/files/local_rules/Local%20Rules%202017.pdf