CORP § 13240

Each association shall within 30 days after its incorporation, adopt for its government and management, a code of by-laws, not inconsistent with this part. A majority vote of the members or shares of stock issued and outstanding and entitled to vote, or the written assent of a majority of the members or of stockholders representing a majority of all the shares of stock issued and outstanding and entitled to vote, is necessary to adopt such by-laws and is effectual to repeal or amend any by-laws, or to adopt additional by-laws. The power to repeal and amend the by-laws, and adopt new by-laws, may, by a similar vote, or similar written assent, be delegated to the board of directors, which authority may, by a similar vote, or similar written assent, be revoked.