Membership of the Order of St. Lazarus is by invitation only and is an honour granted by the Grand Masters H.E. Don Carlos Gererda de Borbon, Marquis de Almazan or H.E. Count Jan Dobrzenský z Dobrzenicz. Both obediences of the Order of St. Lazarus include among their number members of the European nobility, academics, politicians and senior clergy. Membership in the Order is divided into two classes, Knights of Justice and Knights of Magistral Grace, the former is restricted to members of families with noble titles. All members of the Order of St. Lazarus are invested in one of the following ranks, regardless of whether they qualify for Justice or Magistral Grace:
•Knight or Dame Grand Cross of the Order of St. Lazarus of Jerusalem (GCLJ) or (DGCLJ)
•Knight or Dame Commander of the Order of St. Lazarus of Jerusalem (KCLJ) or (DCLJ)
•Knight or Dame of the Order of St. Lazarus of Jerusalem (KLJ) or (DLJ)
•Commander of the Order of St. Lazarus of Jerusalem (CLJ)
•Officer of the Order of St. Lazarus of Jerusalem (OLJ)
•Member of the Order of St. Lazarus of Jerusalem (MLJ)
Gentlemen who are invested in the rank of Knight (KLJ) or higher are entitled to the pronominal Chevalier and women invested in the rank of Dame or higher are entitled to the pronominal Dame. Clergy may be admitted into the Order in one of the ranks as Assistant Chaplain, Chaplain, Senior Chaplain, Ecclesial Commander and Ecclesial Grand Cross. There is also a companionate which is often used to honour individuals who have supported the work of the Order or who have made a significant contribution to society.
Vestments and insignia
For the Order's ceremonial occasions, such as investitures, the members wear distinctive vestments and insignia. The mantle of the Order is a black cloak with a green velvet collar and the cross of the Order sewn onto the left side. The mantle is always worn at religious ceremonies. In addition to the mantle and insignia members of the Order normally wear white gloves and ladies may also wear a mantilla in church.
The insignia of a knight is a badge with Military Trophy pendant from a green neck ribbon, and a golden breast star. Dames of the Order wear the Badge with wreath of laurel and oak springs from a ribbon bow and a golden breast star.
A green button hole rosette may also be worn on a business suit by gentlemen of the Order.