ABC – Alcohol Beverage Control Permit
AD – Administrative Permit
AP – Agricultural Preserve
APN – Assessor’s Parcel Number
BOS – San Diego County Board of Supervisors
CEQA -  California Environmental Quality Act.
DPLU -  Department of Planning and Land Use
DPW -  Department of Public Works: 
EIR – Environment Impact Report
ER – Environmental Review
FM – Final Map
GPA – General Plan Amendment
GPU – General Plan Update
HLP – Habitat Loss Permit
LAFCO – Local Agency Formation Commission
MSCP – Multiple Species Conservation Program
P (or MUP) – Major Use Permit
PAA – Plan Amendment Authorization
Parks and Rec – Valley Center Parks and Recreation District
PERB – Planning and Environmental Review Board (now part of the PC’s duties)
PM – Parcel Map
PC – Planning Commission
R (or REZ) – Rezone
S (or STP) - Site Plan show the physical design, siting, interior vehicular and pedestrian access, and the inter-relationship of these elements of a development proposal.
TM – Tentative Map
SANDAG – San Diego Association of Governments
Smart Growth - The land use planning concept of locating new residential dwellings and increased commercial intensity close to employment and where infrastructure (such as roads, sewers and other public facilities) already exists.
SP - Specific Plan A development plan with particular boundaries, usually used for very large areas; legally a Specific Plan should be consistent with the General Plan, which includes the Community Plan.
SPA- Specifc Plan Amanedment
TM - Tentative Subdivision Map  
TPM – Tentative Parcel Map is a proposed plan for the subdivision of property, which when approved becomes the Final Map.
Tentative Map Resolution: - Legal document adopted by the County that sets out the conditions that must be met, such as road and other infrastructure, and their timing in order for a Tentative Map to be made Final, permits issued and construction commenced.
VCMWD – Valley Center Municipal Water District
VAC – Vacation
V (or VAR) – Variance
ZAP – Minor Use Permit