Award levels

Labs participating in the Laboratory Efficiency Assessment Framework (LEAF) are awarded either bronze, silver or gold based on how many sustainable actions they take.

When joining LEAF the efficiency and sustainability of each lab is evaluated. Each lab is given an award based on how many sustainable actions are put in place. Below is a snapshot of some of the things required for each award level.

Category	Bronze	Silver	Gold
Waste	Required waste bins are provided with clear signage.	Single-use plastic waste has been reduced (guidance provided).	Re-use of materials have been implemented. Recycling rates have been increased, or overall waste produced has been decreased.
People	Samples owned by departing staff are cleared or tracked.	The lab has engaged other labs on LEAF and sustainability.	One action to reduce travel has been implemented.
Purchasing	Energy and materials consumption is considered during the purchase of new equipment.	The lab makes use of take back schemes offered by manufacturers.	LED’s are used where feasible.
Equipment	Equipment is turned off when not in use.	There is a system in place for communal equipment booking.	Excess equipment is repaired, sold, and/or donated.
IT	Computer monitor brightness has been reduced.	Critical data is backed up.	Computing code has been optimised.
Sample and chemical management	Labels are legible, and there's a common labelling system in place.	Procedures are in place in case cold storage equipment breaks down.	At least 85% of all samples and/or chemicals are clearly catalogued.
Research Quality	Common methods are available centrally.	Labs are aware of core facilities.	Sterilisation methods have been optimised.
Teaching		An awareness of environmental impact is incorporated into practical teaching.	Environmental impacts are considered in the design of experimental procedures.
Ventilation	There is a clear reporting system for building issues.	Fume cupboard stashes are kept closed when not in use.	Solvent vapours are condensed and disposed of and not released into the atmosphere.
Water		Sustainable water use is communicated to all lab users.	Guidance is provided on the appropriate use of drains.