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Tens of thousands of people are expected the attend Wednesday's commemoration of the 50th anniversary of the March on Washington. But with politicians, civil rights leaders, entertainers and elected officials scheduled to speak, security will be tight and a number of items are not allowed onto National Park Service property.
The "Let Freedom Ring" commemoration event begins at 11 a.m. on the National Mall.
Those attending will find humid and warm conditions with occasional rain showers from the morning into the afternoon. But ticketed guests are prohibited from bringing umbrellas with them.
Umbrellas are allowed for everyone else.
All participants, both ticketed and not ticketed, are prohibited from bringing the following items:
The Secret Service reserves the right to prohibit any other items that are determined to be a potential public safety hazard.