38 USC 2413 - Prohibition on certain demonstrations at cemeteries under control of the National Cemetery Administration and at Arlington National Cemetery

(a) Prohibition.— 
No person may carry out
(1) a demonstration on the property of a cemetery under the control of the National Cemetery Administration or on the property of Arlington National Cemetery unless the demonstration has been approved by the cemetery superintendent or the director of the property on which the cemetery is located; or
(2) with respect to such a cemetery, a demonstration during the period beginning 60 minutes before and ending 60 minutes after a funeral, memorial service, or ceremony is held, any part of which demonstration
(A) 

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(i) takes place within 150 feet of a road, pathway, or other route of ingress to or egress from such cemetery property; and
(ii) includes, as part of such demonstration, any individual willfully making or assisting in the making of any noise or diversion that disturbs or tends to disturb the peace or good order of the funeral, memorial service, or ceremony; or
(B) is within 300 feet of such cemetery and impedes the access to or egress from such cemetery.
(b) Demonstration.— 
For purposes of this section, the term demonstration includes the following:
(1) Any picketing or similar conduct.
(2) Any oration, speech, use of sound amplification equipment or device, or similar conduct that is not part of a funeral, memorial service, or ceremony.
(3) The display of any placard, banner, flag, or similar device, unless such a display is part of a funeral, memorial service, or ceremony.
(4) The distribution of any handbill, pamphlet, leaflet, or other written or printed matter other than a program distributed as part of a funeral, memorial service, or ceremony.