EMC/RF regulatory lookup for engineers via MCP

Features • Installation • Tools • Examples

An MCP server providing instant access to EMC emission limits, frequency allocations, restricted bands, and compliance requirements. Query FCC Part 15, CISPR, automotive, medical, and cellular standards directly from Claude Code.

Features

FCC (United States)

Part 15.109 - Radiated emission limits (Class A/B)
Part 15.207 - Conducted emission limits
Part 15.209 - Radiated emission limits (intentional radiators)
Part 15.205 - Restricted frequency bands
Part 18 - ISM equipment limits and bands

CISPR (International)

CISPR 11 - Industrial, scientific, medical equipment
CISPR 32 - Multimedia equipment (replaces CISPR 22)
CISPR 14-1 - Household appliances
Limit comparison - FCC vs CISPR with distance correction

Cellular (3GPP)

LTE bands - All E-UTRA bands with frequencies, duplex, bandwidths
5G NR bands - FR1 (sub-6 GHz) and FR2 (mmWave)
US carrier info - AT&T, Verizon, T-Mobile band assignments
Frequency lookup - Find which bands contain a frequency

Coming Soon

CISPR 25 (Automotive components)
IEC 60601-1-2 (Medical devices)
PTCRB certification requirements

Installation

1. Clone and install

git clone https://github.com/RFingAdam/mcp-emc-regulations.git
cd mcp-emc-regulations
uv pip install -e .

2. Add to Claude Code

claude mcp add emc-regulations -- uv run --directory /path/to/mcp-emc-regulations mcp-emc-regulations

Or manually add to ~/.claude.json:

{
  "mcpServers": {
    "emc-regulations": {
      "command": "uv",
      "args": ["run", "--directory", "/path/to/mcp-emc-regulations", "mcp-emc-regulations"]
    }
  }
}

Tools

EMC Limits

Tool	Description
`fcc_part15_limit`	Get FCC Part 15 limits (15.109, 15.207, 15.209)
`fcc_part18_limit`	Get FCC Part 18 ISM equipment limits
`cispr_limit`	Get CISPR 11/22/32/14-1 limits
`emc_compare_limits`	Compare FCC vs CISPR limits at a frequency

Frequency Bands

Tool	Description
`fcc_restricted_bands`	Check if frequency is in 15.205 restricted band
`fcc_restricted_bands_list`	List all restricted bands
`ism_bands_list`	List all ISM frequency bands

Cellular

Tool	Description
`lte_band_lookup`	Look up LTE band by number
`lte_bands_list`	List LTE bands (filter by region/carrier)
`nr_band_lookup`	Look up 5G NR band by name (n77, n260)
`nr_bands_list`	List NR bands (FR1, FR2, by carrier)
`frequency_to_band`	Find which LTE/NR bands contain a frequency

Reference

Tool	Description
`emc_standards_list`	List all available standards
`ecfr_query`	Query eCFR API for CFR regulatory text

Examples

Check FCC Part 15 limits

What are the FCC Part 15 Class B radiated limits at 100 MHz?

→ Returns 43.5 dBuV/m @ 3m (quasi-peak)

Compare FCC vs CISPR

Compare FCC and CISPR Class B limits at 200 MHz

→ Shows both limits with distance correction notes

Check restricted bands

Is 121.5 MHz a restricted band?

→ Yes - aeronautical emergency frequency

Look up LTE band

What frequencies does LTE Band 7 use?

→ UL: 2500-2570 MHz, DL: 2620-2690 MHz (FDD)

Find carrier bands

What 5G bands does T-Mobile use?

→ Low: n71, Mid: n41/n77, mmWave: n260/n261

Frequency to band lookup

What cellular bands use 3500 MHz?

→ LTE Band 42, NR n77, NR n78

Check ISM bands

Is 2.45 GHz in an ISM band?

→ Yes - 2400-2500 MHz ISM band

Data Sources

Source	Type	Coverage
eCFR API	Live	47 CFR (FCC regulations)
3GPP TS 36.101	Curated	LTE band definitions
3GPP TS 38.101	Curated	NR band definitions
CISPR standards	Curated	Emission limits

License

MIT

mcp-emc-regulations