06242018Headline:

Abbreviations

ADA
Americans with Disabilities Act
AFTE
Association of Firearm and Toolmark Examiners.
AHC
Architectural Hardware Consultant (as certified by DHI).
AHD
after hours depository.
AHJ
authority having jurisdiction.
ALOA
Associated Locksmiths of America.
ANSI
American National Standards Institute
ASIS
American Society for Industrial Security.
ASTM
American Society for Testing and Materials.
ATM
automatic teller machine.
ATT
symbol for attendant's key.
BHMA
Builders Hardware Manufacturers Association.
BOCA
Building Officials and Code Administration International
CMK'd
construction master keyed.
CML
the title " Certified Master Locksmith" as awarded by ALOA.
CO
certificate of occupancy.
CPL
the title "Certified Professional Locksmith" as awarded by ALOA.
CPP
the title "Certified Protection Professional" as awarded by ASIS.
CRL
the title "Certified Registered Locksmith" as awarded by ALOA.
CSI
Construction Specifiers Institute.
EMK
emergency master key.
ENG
symbol for engineer's key.
GGGMK
great great grand master key.
GGGMK'd
great great grand master keyed.
GGM
great grand master key.
GGMK
great grand master key.
GGMK'd
great grand master keyed.
GM
grand master key.
GMK
grand master key.
GMK section
grand master key section.
GMK'd
grand master key.
HGM
horizontal group master key.
HKP
housekeeper's key.
ICBO
International Conference of Building Officials.
IR
infrared.
K
symbol for "keys" used after a numerical designation of the quantity of the keys requested to be supplied with the cylinders; e.g. I K, 2K, 3K, etc. It is usually found in hardware/keying schedules.
KA
keyed alike.
KA/2, KA/3, etc
symbol used to indicate the quantity of locks or cylinders in keyed alike groups. These groups are usually formed from a larger quantity; e.g., 30 cylinders KA/2.
KA1, KA2, etc
symbol which indicates that all cylinders designated are or are to be operated by the same keys. The numerical designation indicates the keyed alike group or set.
KBA
key bitting array.
KD
keyed different.
KR
keyed random. Key retaining.
KWV
keyway.
LOBC
locked on by combination.
MACS
maximum adjacent cut specification.
MK
master key.
MK section
master key section.
MK'd
master keyed.
MK'D ONLY
master keyed only.
MOCS
maximum opposing cut specification.
MP
manipulation proof.
MR
manipulation resistant.
MS
Maximum Security. A trademark of the Adams Rite Manufacturing Co.
NCK
symbol for "no change key,” primarily used in hardware schedules.
NFPA 101
National Fire Protection Association life safety code.
NFPA 80
National Fire Protection Association standards for doors and windows.
NFS
non-fail safe.
NKR
non key retaining.
NLSA
National Locksmith Suppliers Association.
NMK
a keying symbol which means "not master keyed" and is suffixed in parentheses to the regular key symbol. It indicates that the cylinder is not to be operated by the master keys specified in the regular key symbol; e.g., AB6(NMK).
NRK
non-removable key.
NRP
non-removable pin.
NUR
symbol for nurse's key.
PIN
personal identification number.
PIR
passive infra-red
RH
right-hand.
RHR
right hand reverse bevel.
RL
The title " Registered Locksmith" as awarded by ALOA
S/A
sub-assembly
SBCCI
Southern Building Code Congress International.
SKD
symbol for "single keyed," normally followed by a numerical designation in the standard key coding system; e.g., SKD I, SKD2, etc. It indicates that a cylinder or lock is not master keyed but is part of the keying system.
SMK
sub-master key.
TMK
top master key.
UL
Underwriters Laboratories.
VATS
Vehicle Anti-Theft System
VD
vertical down.
VGM
vertical group master key.
VKC
visual key control.
VU
vertical up.
X
symbol used in hardware schedules to indicate a cross keyed condition for a particular cylinder; e.g, XAA2, X1X (but not AX7).