Carry-out supplier assessments and periodic supplier audits; 实行供应商评估,定期进行供应商审核;
NSF conducted a plant audit to verify compliance with GMP and will conduct periodic audits at USANA's facility to ensure continued conformance. NSF派员到厂房进行查核,以保证生产符合GMP的要求;亦会到USANA的生产设施审查,保证制作过程严格根据指引进行。