Administrative Structure
General Meeting | The general meeting is composed of regular members and is intended to resolve important administrative matters for the association. An ordinary meeting is held once a year in the spring. District offices take turns regarding the decision concerning the meeting location. |
| Board of Directors | The board consists of 21 directors and 2 controllers and is responsible for executing matters resolved at the general meeting. |
| District Liaison Meeting | This meeting is for representative secretaries from each district and manages the nationwide organization. Also, it implements seminars and other business plans for each district. |
| Committee Liaison Meeting | This meeting is attended by chairpersons from each committee. It implements projects after receiving resolutions made by the board of directors. |
Organization for Implementation of Activities
Activities of the SDA can be divided into two categories; “committee activities” which are handled mainly by each committee consisting of members selected nationwide and “regional activities” implemented by each district.
Committee Activities
Activities are to conduct research and to popularize good sign designs. Members are allowed to join any committee of their choice.
Regional Activities
The country is divided into 8 districts, namely Hokkaido, Tohoku, Kanto, Chubu, Kansai, Chugoku, Shikoku and Kyushu. Activities unique to a district are implemented locally by each district.
A representative secretary and a secretary for each district support their local activities.
- Study Group in Each District
A study group in each district works on various sign design subjects several times a year. Opinions are actively exchanged each time. This is the basis for regional activities. - Observation Tour
Tours are conducted by each district to observe signs in various locations including overseas.
Executive
| President | Kei Miyazaki |
| Vice-president | Makoto Takeuchi |
| Vice-president | Ryouzo Takeyama |
| Senior Director | Tsuneo Mugishima |
| Executive Director | Toshimitsu Sadamura |
| Executive Director | Katsuhiro Shimazu |
| Executive Director | Kozo Yamada |
| Executive Director | Taro Watanabe |
| Executive Director | Kunio Hisada |
| Executive Director | Kyoko Kaneda |
| Executive Director | Isao Miyazawa |
| Executive Director | Maya Nakamuta |
| Executive Director | Junko Watabe |
| Director | Hiroshi Igei |
| Director | Makoto Okawahara |
| Director | Junichi Kawanishi |
| Director | Tatsumi Takamaru |
| Director | Masaki Takeda |
| Director | Yoshio Hayashi |
| Director | Yasunori Matsubuchi |