Experts are encouraged to submit proposals for professional development courses (PDCs), which are in-depth, more formal learning experiences, and education sessions, which make up the main conference program, using the proposal submission portal on the conference website. AIHce EXP 2018, the conference for IH and OEHS professionals worldwide, will be held May 19-24, in Philadelphia. PDCs will be held Saturday and Sunday, May 19 and 20, and on Thursday, May 24. AIHce EXP education sessions will take place Monday through Wednesday, May 21-23.