madam,

A number of standards organizations exist that promulgate safety standards. These may be voluntary organizations or government agencies.

United States

American National Standards Institute

A major American standards organization is the American National Standards Institute (ANSI). Usually, members of a particular industry will voluntarily form a committee to study safety issues and propose standards. Those standards are then recommended to ANSI, which reviews and adopts them. Many government regulations require that products sold or used must comply with a particular ANSI standard.

Testing laboratories

Product safety testing, for the United States, is largely controlled by the Consumer Product Safety Commission. In addition, workplace related products come under the jurisdiction of the Occupational Safety and Health Administration (OSHA), which certifies independent testing companies as Nationally Recognized Testing Laboratories (NRTL),

Dear madam,
there is a need for safety, which is follow

Normative safety

Normative safety is a term used to describe products or designs that meet applicable design standards and protection.
Substantive safety

Substantive, or objective safety means that the real-world safety history is favorable, whether or not standards are met.
Perceived safety

Perceived, or subjective safety refers to the level of comfort of users. For example, traffic signals are perceived as safe, yet under some circumstances, they can increase traffic crashes at an intersection. Traffic roundabouts have a generally favorable safety record, yet often make drivers nervous.

Madam,
The level of union dues varies widely. Some unions collect a percentage of each worker's pay (which may be limited to base wages only or include additional pay such as overtime income). Others collect a percentage of each worker's pay, but the percentage itself varies on a sliding scale (with lower-paid workers paying a lower percentage). Some dues ("set-dues") may be set at a specific level. For example, "each worker must be 150 denarii per month." Some unions use a combination of percentage and "set-dues". Collection frequency also varies widely, and may be tied to the receipt of the paycheck or on a calendar basis (biweekly, monthly, or yearly).

Dear Madam
Depending on the level of democratic control in a union, union members may have little to a great deal of say over the level of dues, what dues are used for, and how often dues are collected. Many union members pay union dues out of their wages, although some unions collect dues separately from the paycheck. Union dues may be used to support a wide variety of programs or activities, including: Paying the salaries and/or benefits of full-time or part-time union leaders and/or staff; union governance; legal representation; legislative lobbying; political campaigns; pension, health, welfare, and safety funds; and/or the union strike fund.