Employee Benefits Corporation has a great article on this topic: http://www.ebcflex.com/Education/ComplianceBuzz/tabid/1140/ArticleID/377/When-Can-Employers-Use-Electronic-Delivery-of-Benefit-Plan-Documents.aspx
The article explains a DOL notice that provides employers with guidelines for electronic distribution to the following types of plan participants. Here is a link to that notice: https://www.dol.gov/ebsa/regs/fedreg/final/2002008499.pdf
Plan participants who can be sent electronic notices
Employers may still provide benefit plan documents electronically to participants who do not meet the above criteria if:
The safe harbor also requires that:
