42 USC 289g3 - Breast implant research

(a) In general 
The Director of NIH may conduct or support research to examine the long-term health implications of silicone breast implants, both gel and saline filled. Such research studies may include the following:
(1) Developing and examining techniques to measure concentrations of silicone in body fluids and tissues.
(2) Surveillance of recipients of silicone breast implants, including long-term outcomes and local complications.
(b) Definition 
For purposes of this section, the term breast implant means a breast prosthesis that is implanted to augment or reconstruct the female breast.