The difference between do Quality Assurance (QA) and Quality Control (QC)

What is the difference between do Quality Assurance (QA) and Quality Control (QC)? What are some of the strategies the contractor can conduct on a project site before the A/E or AHJ inspection? The International Building Code is a combination of three different codes. List them. What is the purpose of the following? Quality Management Plan Safety Management Plan MSDS FOR