12. If the construction documents direct the contractor to use a specific means and methods Job of construction be used, who is responsible for safety when those instructions are followed? 13. Who is responsible for the errors of the subcontractors? 14. Who is responsible for checking the work during construction? 15. What kind of workers are allowed to carry out the construction work? 16. The contractor must warrant to the owner that materials used in the project meet what requirements? 17. What happens if the contractor knowingly performs work that is against the law? 18. How much time does the contractor have to report job site conditions that were unknown or differ markedly from the typical? 19. What steps should the contractor take if burial sites or archaeological discoveries are made during construction? 20. Who must be present at the job site when work is being done? 21. Who has the right to reject the contractor's choice of superintendent? 22. What information must the construction schedule include? 23. List three examples of documents the contractor must keep and deliver to the architect at end of the project