Reference Source

Calcium hypochlorite, hydrated or Calcium hypochlorite, hydrated mixtures, with not less than 5.5 percent but not more than 16 percent water · USPS

What is the restriction type for Calcium hypochlorite, hydrated or Calcium hypochlorite, hydrated mixtures, with not less than 5.5 percent but not more than 16 percent water · USPS?

For Calcium hypochlorite, hydrated or Calcium hypochlorite, hydrated mixtures, with not less than 5.5 percent but not more than 16 percent water, carrier is USPS; restriction type is restricted; scope is domestic mail (air and surface); conditions is Hazard class 5.1, UN2880, packing group II, III; domestic mail air: 5A; domestic mail surface: 5A, recorded from its source on 2026-08-10.

Calcium hypochlorite, hydrated or Calcium hypochlorite, hydrated mixtures, with not less than 5.5 percent but not more than 16 percent water 5.1 UN2880 II, III 5A 5A

— pe.usps.com, retrieved 2026-08-10

Item or substance
Calcium hypochlorite, hydrated or Calcium hypochlorite, hydrated mixtures, with not less than 5.5 percent but not more than 16 percent water verified
Carrier
USPS our reading
Restriction type
restricted our reading
Scope
domestic mail (air and surface) our reading
Conditions
Hazard class 5.1, UN2880, packing group II, III; domestic mail air: 5A; domestic mail surface: 5A
Sourcepe.usps.com
Verified
Review by
DatasetWhat can be mailed: USPS hazardous materials, plus item rules for post and couriers

Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.

Source

Last verified against source: . Due for re-check by . This page as Markdown · OKF bundle · full dataset as JSON.