ne HEADQUARTERS, Joint Task Force SEVEN Washington 25, ». C, 10 November 1953 Appendix32 227 Annex K hostile Actsen Aiert Plan, CUTF SEVEN Operation rlan No 3-53 CONTROLCP ELECTRONIC RADIATICN AND SIL PACE LIGHTING This appendix provides procedures for the curtatiment of non-essential radio, electronic and lighting services on ENIWENUK ATCLL. Assuapt tons a Enemy (2 ¢9¢4 «411 rely primarily on celestial and/er radar xeans for savisation but electronic emissions and surface lighting could be used to ancraase the accuracy of attack. b The exrent of control of electronics emissions will be such as to satisfy the fLoilowing conditions: (1) Degree of protection to be gained must be greater than the cost of controls. (2) Controls will be imposed on all types of non-essential esis- sions. ¢. The ampertance of black 1., dimout and camouflaze has been :¢- daced by the developments an electronics devices and bombing techniques so that total blackout is no longer justified. ¢@. The geographical and meteorological characteristics of the 1szand posations tend to nullify the effects of electronic and surface wichting deception. Concept of Contre) = a. Upen announcement of the follewing conditicns by ATCM ENIWETCK, ali task group commanders will: (1) WHITE ALERT (a) Lighting: After outbreak of general hostilities, place into effect dimout conditions based upon the following eriteria: i. Lighting needed for maximum productive and operational efficiency should be retained. 2 Lishts exposed to the sky or seaward and capable of creating skyglow or of silhouetting vessels should be dimmed seventy five (75) percent. 3 Street and other exterior lighting should be extinz- uished, reduced or shielded to the minimum needed for safety 4. Blackout curtain will net be required other than to | meet the requirements outlined in the foregoing. (b) Electronic Services: Normal wartime controls. (ce) MaritimeNavigational Aids (other than electronic): determined by CINCPACFLT and CCGDFOURTEEN. K-I-) nee Co As