The Global Harmonization Task Force (GHTF) published two new guidance documents in their quality auditing series.
GHTF/SG4/N83:2010 is part 4 and deals with Multiple Site Auditing
GHTF/SG4/N84:2010 is part 5 and deals with Audits of Manufacturer Control of Suppliers
Both documents are available at no charge from www.ghtf.org.
The final documents in the series cover the following topics.
Part 1: General Requirements
Part 1 Supplement 2: Training Requirements for Auditors
Part 2: Regulatory Auditing Strategy
Part 3: Regulatory Audit Reports
Part 4: Multiple Site Auditing
Part 5: Audits of Manufacturer Control of Suppliers