1. (A) No person shall knowingly operate or allow for the operation of a radiofrequency machine in a manner that exposes or may expose any member of the public in a regularly occupied space within the Commonwealth of Massachusetts, to a radiofrequency electromagnetic field which has a mean squared electric or magnetic field strength or an equivalent plane wave free-space power density in excess of the applicable Radiofrequency Exposure Limits listed in 105 CMR 122.015: Table I.

2. (B) In the event of scan failure or other failure in the normal parameters of the scanning operation causing a change in angular velocity, amplitude duration, or rate of exposure, no radiofrequency machine which emits scanned radiofrequency radiation in areas accessible to the public shall be operated without protective measures to prevent exposure in excess of the radiofrequency exposure limits listed in 105 CMR 122.015: Table I.

   105 CMR 122.015: TABLE I

   NON-OCCUPATIONAL RADIOFREQUENCY EXPOSURE LIMITS

   FOR THE GENERAL PUBLIC1

   Maximum Allowed

   Maximum Allowed Maximum Allowed Equivalent Plane

   Wave

   Mean Squared Mean Squared Free Space Electric Field Magnetic Field Power Density2

   2 2 2

Frequency Range Strength (V/m) Strength (A/m) (mW/cm ) ____________________________________________________________________________

300kHz-3MHz 80,000 0.5 20.0

2 2 2

3MHz-30MHz 800(900/f ) 0.005(900/f ) 180/f 30MHz-300MHz 800 0.005 0.2 300MHz-1500MHz 800(f/300) 0.005(f/300) f/1500 1500MHz-100GHz 4,000 0.025 1.0

As used in Table I:

f = frequency in megahertz (MHz) V = voltage in volts A = current in amperes m = length in meters 2 cm = area in square centimeters mW = power in milliwatts

For mixed or broadband fields consisting of a number of frequencies for which different Radiofrequency Protection Guides are listed in 105 CMR 122.015: Table I, the fraction of the Radiofrequency Exposure Limits incurred within each frequency interval shall be determined, and the sum of all such fractions shall not exceed unity.