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Virginia Administrative Code
Title 12. Health
Agency 5. Department of Health
Chapter 481. Virginia Radiation Protection Regulations
7/6/2020

12VAC5-481-3740. Quantities of Radioactive Materials Requiring Consideration of the Need for an Emergency Plan for Responding to a Release.

Radioactive material1

Release fraction

Quantity (curies)

Actinium-228

0.001

4,000

Americium-241

.001

2

Americium-242

.001

2

Americium-243

.001

2

Antimony-124

.01

4,000

Antimony-126

.01

6,000

Barium-133

.01

10,000

Barium-140

.01

30,000

Bismuth-207

.01

5,000

Bismuth-210

.01

600

Cadmium-109

.01

1,000

Cadmium-113

.01

80

Calcium-45

.01

20,000

Californium-252

.001

g (20 mg)

Carbon-14 (non-carbon dioxide)

.01

50,000

Cerium-141

.01

10,000

Cerium-144

.01

300

Cesium-134

.01

2,000

Cesium-137

.01

3,000

Chlorine-36

.5

100

Chromium-51

.01

300,000

Cobalt-60

.001

5,000

Copper-64

.01

200,000

Curium-242

.001

60

Curium-243

.001

3

Curium-244

.001

4

Curium-245

.001

2

Europium-152

.01

500

Europium-154

.01

400

Europium-155

.01

3,000

Germanium-68

.01

2,000

Gadolinium-153

.01

5,000

Gold-198

.01

30,000

Hafnium-172

.01

400

Hafnium-181

.01

7,000

Holmium-166m

.01

100

Hydrogen-3

.5

20,000

Iodine-125

.5

10

Iodine-131

.5

10

Indium-114m

.01

1,000

Iridium-192

.001

40,000

Iron-55

.01

40,000

Iron-59

.01

7,000

Krypton-85

1.0

6,000,000

Lead-210

.01

8

Manganese-56

.01

60,000

Mercury-203

.01

10,000

Molybdenum-99

.01

30,000

Neptunium-237

.001

2

Nickel-63

.01

20,000

Niobium-94

.01

300

Phosphorus-32

.5

100

Phosphorus-33

.5

1,000

Polonium-210

.01

10

Potassium-42

.01

9,000

Promethium-145

.01

4,000

Promethium-147

.01

4,000

Radium-226

.001

100

Ruthenium-106

.01

200

Samarium-151

.01

4,000

Scandium-46

.01

3,000

Selenium-75

.01

10,000

Silver-110m

.01

1,000

Sodium-22

.01

9,000

Sodium-24

.01

10,000

Strontium-89

.01

3,000

Strontium-90

.01

90

Sulfur-35

.5

900

Technitium-99

.01

10,000

Technitium-99m

.01

400,000

Tellurium-127m

.01

5,000

Tellurium-129m

.01

5,000

Terbium-160

.01

4,000

Thulium-170

.01

4,000

Tin-113

.01

10,000

Tin-123

.01

3,000

Tin-126

.01

1,000

Titanium-44

.01

100

Vanadium-48

.01

7,000

Xenon-133

1.0

900,000

Yttrium-91

.01

2,000

Zinc-65

.01

5,000

Zirconium-93

.01

400

Zirconium-95

.01

5,000

Any other beta-gamma emitter

.01

10,000

Mixed fission products

.01

1,000

Mixed corrosion products

.01

10,000

Contaminated equipment beta-gamma

.001

10,000

Irradiated material, any form other than
solid noncombustible

.01

1,000

Irradiated material, solid noncombustible

.001

10,000

Mixed radioactive waste, beta-gamma

.01

1,000

Packaged mixed waste, beta-gamma2

.001

10,000

Any other alpha emitter

.001

2

Contaminated equipment, alpha

.0001

20

Packaged waste, alpha2

.0001

20

Combinations of radioactive materials
listed above1

1For combinations of radioactive materials, consideration of the need for an emergency plan is required if the sum of the ratios of the quantity of each radioactive material authorized to the quantity listed for that material in this section exceeds one.

2Waste packaged in Type B containers does not require an emergency plan.

Statutory Authority

§ 32.1-229 of the Code of Virginia.

Historical Notes

Derived from Volume 24, Issue 18, eff. June 12, 2008.

Website addresses provided in the Virginia Administrative Code to documents incorporated by reference are for the reader's convenience only, may not necessarily be active or current, and should not be relied upon. To ensure the information incorporated by reference is accurate, the reader is encouraged to use the source document described in the regulation.

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