Land Development Services

Fairfax County, Virginia

CONTACT INFORMATION: Office hours: 8 a.m.-4:30 p.m. Counter hours: 8 a.m. – 4 p.m. (M-Th), 9:15 a.m.-4 p.m. (F)

703-324-1780
TTY 711

12055 Government Center Pkwy
Fairfax, VA 22035

Bill Hicks,
Director

Signed and Sealed Drawings

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Seals

Regulations

  • Use the tables below to determine if your plans are required to be sealed.
  • The requirements for signing and sealing documents, including electronic signatures, must be in accordance the Virginia Department of Professional and Occupational Regulation (DPOR), Section 54.1 402 of the Code of Virginia.
  • The Building Official is permitted to require sealed drawings regardless of the requirements herein.
  • If you are a Virginia RDP, you must sign and seal your drawings regardless of these requirements.
  • The term “registered design professional” or “RDP” is defined as a Virginia licensed architect or professional engineer.
  • Unique structural designs require an RDP seal.
  • Standard design drawings certified by out-of-state RDPs require a Virginia-licensed RDP to certify the design meets local criteria.
  • When no RDP seal is required, the drawings must list the name, occupation and address of the designer.
  • To determine if an RDP has a current license, go to www.dpor.virginia.gov.

How do I sign and seal my drawings?

  • There are two options for signing and sealing paper plans:
    1. Seal, date and sign each page with original signatures only.
    2. Should a PDF version of the plans be submitted in addition to a copy of the paper set, Building Plan Review counter staff must be notified by the applicant at the time of submission. This will ensure timely routing of the drawings.
  • Electronically submitted plans must contain a seal and electronic signature with signature protection on each sheet or only the cover sheet provided it has a table of contents.

When a Signature and Seal is Required

Based on group, area and number of stories of the proposed construction, where indicated with a “P” requires an RDP seal.

Building, Structural, Fire Protection

 

 

 

Area, SF

 

Stories

Group

Description

≤5,000

>5,000 – 15,000

>15,000

≤3

>3

A1

assembly

P

P

P

P

P

B

business

 

P

P

 

P

E

schools, daycare center

P

P

P

P

P

F

factory, industrial

 

 

P

 

P

H

high hazard

P

P

P

P

P

I

institutional

P

P

P

P

P

M

mercantile

 

P

P

 

P

R-1

hotel, motel, dormitory

P

P

P

P

P

R-2

multi-family residential

 

 

 

 

P

R-3

attached one-family dwelling

 

 

 

 

P

R-4

residential assisted living

 

 

P

 

P

R-5

one- & two-family dwelling

 

 

 

 

P

S

storage (nonfarm)

 

 

P

 

P

U

utility, miscellaneous

 

 

P

 

P

  1. Places of worship are exempt if the building ≤ 5,000 sf or stories ≤ 3, and occupant load ≤ 100.

Electrical1

 

 

Stories

Occupant Load

Volt

Amps

Group

Description

≤3

>3

≤100

>100

≤600

>600

≤800

>800

A-1, A-4

theatre, arena

 

P

 

P

 

P

 

P

A-2

restaurant, nightclub

 

P

 

 

 

P

 

P

A-32

health club, museum

 

P

 

 

 

P

 

P

A-5

grandstand, etc.

 

P

 

 

 

P

 

P

B

business

 

P

 

 

 

P

 

P

E

school, daycare

P

P

P

P

P

P

P

P

F

factory, industrial

 

P

 

 

 

P

P

P

H

high hazard

P

P

P

P

P

P

P

P

I-1, I-2, I-3

institutional

P

P

P

P

P

P

P

P

I-4

daycare/nursery

 

P

 

 

 

P

 

P

M

mercantile

 

P

 

 

 

P

 

P

R

residential

 

P

 

P

 

P

 

P

S

storage

 

P

 

 

 

P

 

P

U

utility, miscellaneous

 

P

 

 

 

P

 

P

  1. Those areas not marked with a "P" must be designed by either an RDP, licensed master electrician, or Class A electrical contractor.
  2. Places of worship are exempt.

Plumbing and Mechanical1

 

 

Stories

Occupant Load

Threshold Level2

Group

Description

≤3

>3

≤100

>100

Below

Above

A-1, A-4

theatre, arena

 

P

 

P

 

P

A-2

restaurant, nightclub

 

P

 

 

 

P

A-33

health club, museum

 

P

 

 

 

P

A-5

grandstand, etc.

 

P

 

 

 

P

B

business

 

P

 

 

 

P

E

school, daycare

P

P

P

P

P

P

F

factory, industrial

 

P

 

 

 

P

H

high hazard

P

P

P

P

P

P

I-1, I-2, I-3

institutional

P

P

P

P

P

P

I-4

daycare/nursery

 

P

 

 

 

P

M

mercantile

 

P

 

 

 

P

R

residential

 

P

 

P

 

P

S

storage

 

P

 

 

 

P

U

utility, miscellaneous

 

P

 

 

 

P

  1. Those areas not marked with a "P" must be designed by either an RDP, licensed master plumber or mechanical worker, or Class A plumbing or mechanical contractor.
  2. Threshold level is plumbing and mechanical systems using packaged mechanical equipment not exceeding gauge pressures of 125 pounds per square inch, other than refrigeration, or temperatures other than fuel gas of 300 degrees F.
  3. Places of worship are exempt.
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