GMP Gowning Regimen
Classification
Description
Examples
Gowning
Remarks
G 0
Street clothes

Mechanical Room
Electrical Room
Storage Rooms
Process Grey Space
No requirements
Access to unclassified and
non-controlled spaces only
G 1
Plant Uniform

Warehouse
Loading Dock
Storage Rooms
Safety Shoes
 
G 2
Process Gown
Wash areas
Secondary Packaging

Hairnet/ Beard Cover
Labcoat over Plant Uniform
Booties over plant shoes
may use dedicated shoes in
lieu of booties
G 4
Process Gown
Media/ Buffer Prep
Primary Processing
Fermentation

Hairnet/ Beard Cover
Process Gown over Plant Uniform
Tyvek shoecovers over plant shoes
Gloves
 
G 5
Process Gown- Aseptic
Aseptic Filling

Hairnet/ Beard Cover
Process Gown with full headcover over
Plant Uniform
Tyvek shoecovers over plant shoes
Goggles or face mask
Gloves
No exposed skin

Sterile gowning protocol
includes pre-gowning
G 6
Process Gown-
Laboratory
Quality Control Labs
Microbiology Labs

Lab Coat over street clothes or Plant
Uniform
Classified lab areas may
require G 2 gowning
G 7
Special
TBD

TBD
TBD
         
In conjunction with other Tools and Checklists, let's start with a classification of the basic
spaces that are found in a typical GMP process facility...

The basic breakdown provides for Process space and Non-process space with individual
classifications suitable for most functions within a facility.  These classification mostly are tied
to type of function, the environment most appropriate for that function, and ultimately, the cost of
the various space classifications.

The table below outlines the basics of the space classification system:
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Gowning Requirements- see below
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Space Classification System
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Explanation
OS - Engineering
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GMP Process Space
Classification
Description
Examples
Finishes
Remarks
Class 1
Support/ Utility
Mechanical Room
Electrical Room
Storage Rooms
Process Grey Space
Floor- Sealed Concrete
Walls- Epoxy Paint over CMU/
GWM/ Ext Siding
Base- none
Ceiling- Exposed Structure
Other-
Upgrade floors to epoxy paint/
seamless epoxy
May be rated walls
Class 2
Material Handling
Warehouse
Loading Dock
Storage Rooms
Floor-
Walls-
Base-
Ceiling-
Other-
Same as Class 1 space noted
above
Upgrades same as Class 1
noted above
Class 3-CNC
Process- CNC
Secondary Packaging
Floor- Sheet vinyl
Walls- GWB w/ epoxy paint
Base- Vinyl cove base
Ceiling- AC tile
Other- n/a
 
Class 3-D
Process- Class D
Media/ Buffer Prep
Solid Dosage
Floor- Seamless epoxy
Walls- GWB w/ epoxy paint
Base- Epoxy cove base
Ceiling- CR AC tile
Other- n/a
 
Class 3-C
Process- Class C
Primary Processing
Fermentation
Floor- Seamless epoxy
Walls- GWB w/ epoxy paint
Base- Epoxy cove base
Ceiling- GWB w/ epoxy paint
Other- n/a
 
Class 3-B
Process- Class B
Primary Processing
Purification
Floor- Seamless epoxy
Walls- GWB w/ epoxy paint
Base- Epoxy cove base
Ceiling- GWB w/ epoxy paint
Other- n/a
Pre-engineered ceiling
system for laminar flow areas
Class 3-A
Process- Class A
Aseptic Processing
Lyo Loading/ Unloading
Floor- Seamless epoxy
Walls- GWB w/ high- build
epoxy paint
Base- Epoxy cove base
Ceiling- GWB w/ epoxy paint
Other- stainless steel/ acrylic
doors at air walls
Pre-engineered ceiling
system for laminar flow areas
Maybe use pre-engineered
modular wall system
Class 4
Laboratory
Quality Control Lab
Microbiology Lab
Floor- Sheet vinyl
Walls- GWB w/ epoxy paint
Base- Vinyl cove base
Ceiling- CR AC tile
Other- n/a
 
Class 5
Environmental Chamber
Cold Room
Freezer Room
Warm Room
Floor- M panel/ Sheet vinyl
Walls- M panel
Base- none
Ceiling- eggcrate/ M panel
Other- n/aOther- n/a
Upgrade floor to seamless
epoxy
Class 6
Other/ Specialty
TBD
Floor-
Walls-
Ceiling-
Other-
 
         
         
         
Non-process Space
Classification
Description
Examples
Finishes
Remarks
         
HVAC Classifications
Some typical HVAC Classifications are noted below- requirements in your facility may vary...
Gowning Requirements
Some typical gowning regimes are noted below- requirements in your facility may vary...
GMP HVAC Classifications
FDA
Classification
ISO
Classification
EU
Classification
Description
Remarks
Unclassified
N/A
N/A
General Access
Unrestricted
 
Unclassified
N/A
N/A
Grey Space
Mechanical Access
 
Controlled
Non- Classified
N/A
Grade D
Return Corridor
Equipment Wash
 
Class 100,000
Class 8
Grade C

Process Areas
Material Prep Areas
 
Class 10,000
Class 7
Grade B

Inoculum Lab
Final Processing
 
Class 100
Class 5
Grade A

Bulk Filling
Open Process Steps
 

HEPA Filtered
UnidirectionalAirflow
N/A
N/A
Equipment Cool-down