periodic publications; namely, pamphlets, handbooks, and newsletters relating to topics of interest in the field of radiation protection (health physics); and printed registry of qualified radiation protection technologists; printed testing materials, instructions, and test preparation materials; decals

periodic publications; namely, pamphlets, handbooks, and newsletters relating to topics of interest in the field of radiation protection (health physics); printed registry of qualified radiation protection technologists; printed testing materials, instructions, and test preparation materials; decals