Obtain LTL freight rates using the SMC3 CzarLite rating engine API and map NMFC commodity codes to freight class

Steps

1. Register for SMC3 API access and obtain credentials for the RateWare XL or CzarLite web service endpoint
2. Look up the commodity's NMFC item number and assigned freight class using the SMC3 ClassIT tool or the NMFC directory, noting density-based class provisions
3. Build the rating request with origin/destination zip codes, weight, freight class, number of handling units, and any accessorial service codes
4. Parse the response to extract the base rate, fuel surcharge, and accessorial charges, then apply carrier-specific discounts if negotiated off the tariff
5. Compare the rated class against a density calculation (weight divided by cubic feet) to confirm the correct class under updated NMFC density-based provisions