General Safety puzzle

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Across
  1. 3. Substances that catch fire easily
  2. 7. Regular check done before long trips
  3. 9. Used for moving containers at a port
Down
  1. 1. Document required for cross-border cargo clearance
  2. 2. Clothing worn for visibility
  3. 4. System used to track goods
  4. 5. Worn to protect your head on-site
  5. 6. Rules or guidelines to prevent workplace accidents
  6. 8. When lifting heavy object bend your ______ not your back