Greetings to all of you. I saw that good information was shared about forklifts. In order to contribute, I compiled abbreviations in documents such as manuals and procedures. I hope it's useful.

4-D: Capable of travel forwards/backwards/left/right
AC: Alternating Current
ACOP: Approved Code of Practice
AGV: Automated Guided Vehicle
AI: Automatic Identification
AMPH: Amp Per Hour
BHS: Battery Handling Systems
BLO: Baseleg Opening
BOW: Baseleg Overall Width
BPI: Batch Put Indicator
BSOC: Battery State of Charge
CB: Counterbalance
COG: Centre of Gravity
ECH: Empty Container Handler
EL. HT: Elevated Height
EX. HT: Extended Height
FFL: Full Free Lift
CNG: Compressed Natural Gas
DTI: Digital Tilt Indicator
FL: Forklift or Free Lift
FLT: Forklift Truck
FOPS: Falling Object Protection System
FS: Forklift Service
HHPT: Hydraulic Hand Pallet Truck
HLPT: High-lift Pallet Truck
HPT: Hand Pallet Truck
ITSSAR: Independent Training Standards Scheme and Register
LC: Load Centre
LH: Lowered Height
LLC: Lost Load Centre
LLOP: Low-Level Order Picker
L: Low-Lift Truck
LPG: Liquid Petroleum Gas
LSI: Large Spark Ignited
MH: Materials Handling
OACH: Overall Collapsed Height
OAL: Overall Length
OAW: Overall Width
OHG: Overhead Guard
OP: Order Picker
OPSS: Operator Presence Sensing System
PAS: Pedestrian Alert System
PDS: Pedestrian Detection System
PFL: Part Free Lift
PHC: Portable Hand Controller
POF: Pedestrian-operated Forklift
PPT: Powered Pallet Truck
PTO: Pallet Truck Operator
RS: Reach Stacker
RTFLT: Rough Terrain Forklift Truck
SLR: Side Loader
SMH: Systems Material Handling
S/S: Side Shift
TF: Two-Stage Mast
TM: Top Mount
TN: Nominal Free Lift or Two-Stage Mast
TT: Three-Stage Mast
VNA: Very Narrow Aisle
WP: Work Platform
WR: Walkie Reach

Reference address for all: https://acronym24.com/forklift-abbreviations/