Wnat to know how your boss’s pay sizes up to everyone else’s? If you work at a public company, that information may soon be a matter of public record, as the New York Times reports:

“After a long delay and plenty of pushback from corporate America, the Securities and Exchange Commission approved on Wednesday a rule that would require most public companies to regularly reveal the gap between the compensation of the chief executive and the pay of the rest of their employees.”

The rule, which stems from the 2010 Dodd-Frank overhaul of financial regulation, gives companies considerable flexibility in calculating the pay gap, suggesting that the S.E.C. was receptive to the concerns about cost and complexity that corporations expressed.”

Taking effect in 2017, the new rule will require companies to calculate their chief executive’s pay ratio to their employee’s median income.  The rule will allow for some flexibility in how a company calculates the average income of its workers, and it seems the ratio will be a requirement in financial reporting for most.

Two of the five commissioners voted against the rule, disputing the usefulness of such a data point.

The Center on Executive Compensation, the group lobbying against the rule, said  “only a small segment of shareholders, primarily unions, certain pension funds and social activists, are likely to use the pay ratio to drive their own narrowly tailored agendas,” in a news release.

Read more about the SEC and its rule over at the Times.