Section 6016. Greater requirement as to quorum and vote of stockholders

1.
  The organization certificate may contain provisions specifying either or
  both of the following:
    (a) That the proportion of shares, or the proportion of shares of  any
  class or series thereof, the holders of which shall be present in person
  or  by  proxy  at  any  meeting of stockholders in order to constitute a
  quorum for the transaction of any business or of any specified  item  of
  business, including amendments to the organization certificate, shall be
  greater than the proportion prescribed by this chapter in the absence of
  such provision.
    (b)  That  the proportion of votes of the holders of shares, or of the
  holders of shares  of  any  class  or  series  thereof,  that  shall  be
  necessary  at  any  meeting  of  stockholders for the transaction of any
  business or of any specified item of business, including  amendments  to
  the  organization  certificate,  shall  be  greater  than the proportion
  prescribed by this chapter in the absence of such provision.
    2. An amendment of the organization certificate which adds a provision
  permitted by this section  or  which  changes  or  strikes  out  such  a
  provision,  shall  be authorized at a meeting of stockholders by vote of
  the holders of two-thirds of all outstanding  shares  entitled  to  vote
  thereon,  or  of such greater proportion of shares or class or series of
  shares, as may be provided specifically in the organization  certificate
  for  adding,  changing  or  striking  out  a provision permitted by this
  section.
    3. If the organization  certificate  of  any  corporation  contains  a
  provision  authorized  by  this section, the existence of such provision
  shall be noted conspicuously on the face or back  of  every  certificate
  for shares issued by such corporation.