The phrase "strict standards" means having very specific and rigorous rules or guidelines that must be followed carefully and precisely. Full definition
While no two flats are the same each meets strict standards for quality, cleanliness, safety, and service. (romeapartments.com)
• Track record of efficiently transporting luggage and cargo items between locations by following strict standards of code of ethics and luggage / cargo security. (eresumecoverletter.com)
Residents can take these classes from approved companies known as course sponsors who must meet strict standards for content and the effectiveness of their programs. (grandprixdrivingschool.com)