CIDB Green Card (e-SICW) study materials
CIDB Green Card (e-SICW) study resources

CIDB Green Card (e-SICW): Site housekeeping, signage, communication and environmental control

CIDB Green Card (e-SICW) · Work through your exam, one topic at a time.

All guide sections

Site housekeeping, signage, communication and environmental control

This domain tests the everyday controls that prevent slips, trips, falls and pollution: housekeeping, signage, communication and environmental protection.

Core rules

  • Housekeeping: keep walkways and stairs clear, stack materials safely, remove waste, clean spills and maintain access to fire equipment. Poor housekeeping is a common root cause of incidents.
  • Signage: use prohibition, warning, mandatory and safe-condition signs correctly. Signs do not replace controls; they support them.
  • Communication: induction, toolbox talks, clear instructions and language that workers understand. Use barriers, banksmen and radios where needed.
  • Environmental control: control dust, noise, silt water and waste. Segregate waste, store chemicals safely and have spill kits ready.

Worked example

A drum of hydraulic oil leaks near a drain. The correct response is to stop the source, contain the spill with absorbent or a bund, block the drain, notify the supervisor, clean up and dispose of the waste as scheduled waste. The reasoning is that oil can pollute water and create a slip hazard; containing it at source is cheaper and safer than cleaning a drain later.

Traps

Do not block escape routes with materials. Do not use a sign instead of a physical guard. Do not assume workers understand English-only instructions. Do not hose a spill into a drain.