Only a few have applied a certain quality standard such as San Miguel Corporation, Jolibee, etc. and Adventist Medical Center in Iligan City. These are the companies that have passed the standard level of quality assurance. As discussed, quality assurance is very important in business and having only a few companies with quality assurance, people may have doubts in approaching that particular company. Even if a company is already approved to a certain quality standard, sometimes employees violate the rules. Recently, a government company called BIR (Bureau of Internal Revenue) is under investigation. This company is ISO approved, which means it has passed quality standardization. People in society, such as government company customers, expect their services to be of excellent level as ISO is the highest quality standard in the industry.