To keep all surfaces, objects, people and ESD Sensitive Devices (ESDs) at the same potential within a defined space is achieved by simply using only 'groundable' materials, i.e. materials with an electrical resistance typically of less than 109 ohms, for covering of surfaces and for the manufacture of containers and tools.
All surfaces, products and people are bonded to Ground. Bonding means linking, usually through a resistance of between 1 and 10 megohms.
Movable items, such as
containers and tools, are bonded by virtue of standing on a bonded surface or
being held by a bonded person. Everything that does not readily dissipate
charge must be excluded from the EPA.
The ESD protected area should have signage, often including aisle tape, to clearly identify where it is. You need to understand and follow the basics of ESD control to limit the generation of ElectroStatic charges, limit and slow discharges in the ESD Protected Area.