The International Bureau Of Weights and Measures (or Bureau International Des Poids et Mesures) is located in Severes, France.

It was a agreement that created to preserve the metric system. One organization was the International Bureau of Weights and Measures (BIPM); the General Conference on Weights and Measures (CGPM); International Committee for Weights and Measures (CIPM).
It was a agreement that created to preserve the metric system.
The Treaty of the Meter (also known as the Metre Convention) is a treaty which created three organizations tasked with supervising the keeping of metric standards:

(1) International Bureau of Weights and Measures (BIPM);
(2) General Conference on Weights and Measures (CGPM);
(3) International Committee for Weights and Measures (CIPM).

(The initialisms are derived from the French names for the organizations as the treaty was written in French.)

The BIPM is under the authority of the CGPM, and under the supervision of the CIPM.

The treaty was signed in 1875 and slightly revised in 1921. The system of units established by the treaty was later renamed the International System of Units (SI) in 1960.

There were 17 original signatories of the treaty, but this number grew to 52 by the start of 2009.

Zetta is the BIPM name for the prefix multiple for 1021.

Have a crack at Zetta in Wikipedia. zepto is the sub-multiple for 10-21.

Note the upper case letter for the multiple and the lower case for the sub-multiple.

[BIPM = Bureau International Poids et Measures = International Bureau for Weights and Measures. ]

deka is a prefix for 10. The International Bureau for Weights and measures (BIPM, Paris) is the international body where this terminology is agreed upon. On their website you'll find a full list of prefixes and suffixes.

It may be Kingdom, if you are referring to taxonomy,

or perhaps the Bureau des Poids et Measure if you are referring to an international organization. (in the above case, weights and measures).