Section 28-201.2.1. Specified immediately hazardous violations

The
  commissioner shall classify  the  following  violations  as  immediately
  hazardous:
    1.  A  violation  of  section  28-210.1  in  which  a building legally
  approved for occupancy as a one-family or two-family  dwelling  (as  set
  forth  in the certificate of occupancy or if no certificate of occupancy
  is required, as evidenced by official records) is illegally converted to
  or maintained as a dwelling for occupancy by four or more families;
    2. Any violation of section 28-211.1 false statement;
    3. Any violation of a stop work order or of a cease use order;
    4. Any violation of a vacate order or order to seal, secure and close,
  or closure order;
    5. Unlawful demolition;
    6. Falsely impersonating an employee or authorized  representative  of
  the department;
    7. Occupancy without a required certificate of occupancy;
    8. Intentional disobedience or violation of any provision of a closure
  order;
    9.   Submittal  of  a  materially  false  or  misleading  professional
  certification.
    10. A violation of section 28-212.11.
    11. A violation of section 28-307.1.
    12. A  violation  by  a  licensed  rigger  or  person  performing  the
  functions  and duties of a licensed rigger of the provisions of sections
  28-404.1 or 28-401.9 of this code or such  person's  failure  to  ensure
  that workers have certificates of fitness required pursuant to this code
  or  applicable  rule  or  any  person's  violation  of the provisions of
  section 3314.4.3.1 of the New York city building code.
    13. A violation of any provision  of  chapter  4  of  this  title  for
  engaging  in  any  business  or occupation without a required license or
  other authorization.
    15. A violation of sections 3303.4.5  and  3303.4.6  of  the  building
  code.