That document relates to TEMPEST which I very vaguely remember something about. It's a RF shielding system designed to keep "spies" from evesdropping via RF leakage from computer and other equipment.
The only mention of EMP is where the document states that the system [TEMPEST]contrasts with high altitude EMP (HEMP) shielding which protects against nuclear electromagnetic effect infiltration into sensitive electronic equipment.
It's also 14 years old.
-Hal
