Practice question

Leaving a small heel of compatible product may sometimes be required operationally, but drivers must still:

  1. Assume residues are always non-dangerous
  2. Know residues remain regulated and can create hazards during cleaning or next load
  3. Ignore previous-load identity
  4. Vent residues into drains

Answer: B — Know residues remain regulated and can create hazards during cleaning or next load

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