40 Pa. Stat. § 1111
All beneficial certificates issued by any beneficial society in which the application of the member, the constitution, by-laws or other rules of the society form part of the certificate or contract between the parties thereto, or have any bearing thereon, shall contain or have attached thereto correct copies of the application as signed by the applicant or the constitution, by-laws or other rules referred to, and, unless so attached and accompanying the certificate or contract, such application, constitution or by-laws or other rules shall not be received in evidence in any controversy between the parties to or interested in the certificate or contract, nor shall such application, constitution, by-laws or other rules be considered a part of the certificate or contract between such parties.
40 P.S. § 1111