Also on the books in Canada is a law concerning public notification of weather-modification activities. Apparently this means that people must submit proposals with full details of what they plan to do, how large an area will be affected, and other details. As worded, the act appears to be designed to allow people in the affected area to be informed and to raise objections if they are negatively affected. An example is the use of a hail cannon, which uses a powerful supersonic shockwave to break up the hail formation process in the clouds. (Ref) Due to the high decibel level, a warning whistle must be sounded in advance of each firing of the cannon so that any people who are nearby can protect their ears.
However, when citizens of Canada have attempted to use this act to obtain information about the weather-modifying activity known as chemtrail spraying, the public disclosure principle does not seem to be applicable. One caller in Ontario ended up talking with a someone in an office in Manitoba who attempted to persuade him that this was only crop-dusting, one of the usual disinformation tactics. Whether or not the information exchange agreement between Canada and the U.S. means that the Canadian government is being informed about this program, the information is not trickling down to the public. The spirit of this act is more honored in the breach than in the observance.