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Permit Number

All permit numbers begin with a letter that corresponds to the permit type.

B  Building
E  Electrical
G  Gas
K  Fire Suppression/Alarms
M  Mechanical
P  Plumbing

Permit numbers may appear in two different formats, depending on whether they were issued before or after the implementation of the LMIS Permitting system.

Newer permit numbers with a Permit-Issue-Date of "2001-11-05" or after follow the format of one letter followed by eleven numerals. For example:


Older permit numbers with a Permit-Issue-Date prior to November 5th, 2001 follow the format of two letters followed by five numerals. For example:


Loudoun On
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