And the promoter is an important customer of center, so the center side could not say that is unknown.
To use them as a chat channel, public office OB etc. are embraced as a staff on the center side. 
Seemingly, it is "Get a position a private company. " However, the person  who undertakes the interests adjustment of an old obligation and new work is a quite difficult standpoint. (※ Parties concerned of the police and fire fighting reside in Tokyo Big Sight)
It is severe work not being taken a holiday on the day when the event is held, even if it is on Saturday, and on Sunday. 

If they are not flexible, and keep the principle principle of an old obligation,  The promoter group would rumor "There is a agent in the public office in that center". The company which want to use the center decreases remarkably.
However, it might cause a big accident when refraining from the restriction too much accepting the demand of 100% promoter. 
It is not exaggeration to say that the management of the center is controlled whether the person who has the balance sense should have be elected.

The government offices related to the event are as follows. 

The police

The promoter consults about the inducement plan of the customer with the police beforehand when the event is held. 
When congestion is forecast, it is directed that a lot of inducement workers are arranged by the police. But for the promoter, personnel expense is most expenses part. The promoter wants to save this as much as possible. 
Additionally, the police have the authority of the road restriction of the surrounding etc.
The car exhibition cannot be held without the understanding of police. 

The fire station

The fire station has the authority of the shelter passage. This standard is enacted considerably in detail. 
The area of the passage in the hall is controlled by this standard. Naturally, the area for the exhibition company decreases if the passage is wide. 
According to the insistence of the promoter, I hear that the restriction by the fire fighting method of Japan was considerably severer than Europe. 
When the hall is crowded, everybody shall think that event must be wonderful .In that sense, the promoter want to narrow the passage. 

the public health center

When the branch shop of food is opened in the exhibition hall, the permission of the public health center is necessary. 
A lot of shops, for example the chow noodle and the octopus scorch, open  at the fair of the Shinto shrine. However, the condition to open food shop in the hall becomes very severe. 
There is a detailed instruction from equipping the washroom place to the specification of the wastewater equipment and the handling of the dish. The promoter should clear this standard.
Additionally, the public health center has the authority of the restriction about Air-conditioning standard and number of rest rooms when event is held.

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