Michael,
The way I read it, it is not permitted, or, at most, permitted only under very specific conditions, which that photo does not appear to meet.
Be that as it may, you asked about the IRC: (underlining is mine)
-
P3003.2 Prohibited joints. Running threads and bands shall not be used in the drainage system. Drainage and vent piping shall not be drilled, tapped, burned or welded.
- - The following types of joints and connections shall be prohibited:
- - - 1. Cement or concrete.
- - - 2. Mastic or hot-pour bituminous joints.
- - - 3. Joints made with fittings not approved for the specific installation.
- - - 4. Joints between different diameter pipes made with elastomeric rolling O-rings.
- - - 5. Solvent-cement joints between different types of plastic pipe.
- - - 6. Saddle-type fittings.
This is a good time to point out what I keep forgetting to point out in response to other questions about different type plastics and glues for them: see 5 above. "5. Solvent-cement joints between different types of plastic pipe"
That would not be allowed under the IRC.